@article{BrueckSorgerGligorevicetal.2000,
  author    = {Br{\"u}ck, Stefan and Sorger, Ulrich and Gligorevic, Snjezana and Stolte, Norbert},
  title     = {Interleaving for outer convolutional codes in DS-CDMA systems},
  series = {IEEE transactions on communications},
  volume    = {Vol. 48},
  journal   = {IEEE transactions on communications},
  number    = {Iss. 7},
  issn      = {0090-6778},
  pages     = {1100 -- 1107},
  year      = {2000},
  language  = {en}
}
@article{Gligorevic2008,
  author    = {Gligorevic, Snjezana},
  title     = {Joint channel estimation and equalisation of fast time-varying frequency-selective channels},
  series = {European transactions on telecommunications},
  volume    = {Vol. 19},
  journal   = {European transactions on telecommunications},
  number    = {Iss. 1},
  issn      = {1541-8251; 2161-3915; 1120-3862; 1124-318X},
  pages     = {1 -- 13},
  year      = {2008},
  language  = {en}
}
@article{Gligorevic2013,
  author    = {Gligorevic, Snjezana},
  title     = {Airport surface propagation channel in the C-Band: measurements and modeling},
  series = {IEEE transactions on antennas and propagation},
  volume    = {Vol. 61},
  journal   = {IEEE transactions on antennas and propagation},
  number    = {Iss. 9},
  publisher = {IEEE},
  address   = {New York},
  issn      = {0018-926x},
  pages     = {4792 -- 4802},
  year      = {2013},
  language  = {en}
}
@article{Alt1974,
  author    = {Alt, Helmut},
  title     = {1,45 Mrd. DM f{\"u}r die Kohlevergasung},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {24},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {5},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {243 -- 244},
  year      = {1974},
  language  = {de}
}
@article{Alt1992,
  author    = {Alt, Helmut},
  title     = {Renditevergleich zwischen Immobilien und Festverzinslichen},
  series = {Die Bank},
  journal   = {Die Bank},
  number    = {H. 2},
  issn      = {0342-3182},
  pages     = {91 -- 92},
  year      = {1992},
  language  = {de}
}
@article{Alt1975,
  author    = {Alt, Helmut},
  title     = {Elektro-Brikett-Zentralspeicherheizung soll die Spitzenlast der EVU schonen},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {25},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {4},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {148 -- 149},
  year      = {1975},
  language  = {de}
}
@article{Alt1974,
  author    = {Alt, Helmut},
  title     = {Ab 1975 Uranerz aus Rabbit-Lake},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {24},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {1/2},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {34},
  year      = {1974},
  language  = {de}
}
@article{FerreinMaraisPotgieteretal.2011,
  author    = {Ferrein, Alexander and Marais, Stephen and Potgieter, Anet and Steinbauer, Gerald},
  title     = {RoboCup Junior: A vehicle for S\&T education in Africa?},
  publisher = {IEEE},
  address   = {New York},
  isbn      = {978-1-61284-992-8},
  pages     = {1 -- 6},
  year      = {2011},
  language  = {en}
}
@article{FerreinSteinbauer2016,
  author    = {Ferrein, Alexander and Steinbauer, Gerald},
  title     = {20 Years of RoboCup - A Subjective Retrospection},
  series = {KI - K{\"u}nstliche Intelligenz},
  volume    = {30},
  journal   = {KI - K{\"u}nstliche Intelligenz},
  number    = {3},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1610-1987},
  doi       = {10.1007/s13218-016-0449-5},
  pages     = {225 -- 232},
  year      = {2016},
  abstract  = {This summer, RoboCup competitions were held for the 20th time in Leipzig, Germany. It was the second time that RoboCup took place in Germany, 10 years after the 2006 RoboCup in Bremen. In this article, we give an overview on the latest developments of RoboCup and what happened in the different leagues over the last decade. With its 20th edition, RoboCup clearly is a success story and a role model for robotics competitions. From our personal view point, we acknowledge this by giving a retrospection about what makes RoboCup such a success.},
  language  = {en}
}
@article{FerreinSteinbauerMcPhillipsetal.2009,
  author    = {Ferrein, Alexander and Steinbauer, Gerald and McPhillips, Graeme and Niem{\"u}ller, Tim and Potgieter, Anet},
  title     = {Team Zadeat 2009 : team report},
  volume    = {6},
  pages     = {1},
  year      = {2009},
  language  = {en}
}
@article{LeingartnerMaurerFerreinetal.2016,
  author    = {Leingartner, Max and Maurer, Johannes and Ferrein, Alexander and Steinbauer, Gerald},
  title     = {Evaluation of Sensors and Mapping Approaches for Disasters in Tunnels},
  series = {Journal of Field Robotics},
  volume    = {33},
  journal   = {Journal of Field Robotics},
  number    = {8},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1556-4967},
  doi       = {10.1002/rob.21611},
  pages     = {1037 -- 1057},
  year      = {2016},
  abstract  = {Ground or aerial robots equipped with advanced sensing technologies, such as three-dimensional laser scanners and advanced mapping algorithms, are deemed useful as a supporting technology for first responders. A great deal of excellent research in the field exists, but practical applications at real disaster sites are scarce. Many projects concentrate on equipping robots with advanced capabilities, such as autonomous exploration or object manipulation. In spite of this, realistic application areas for such robots are limited to teleoperated reconnaissance or search. In this paper, we investigate how well state-of-the-art and off-the-shelf components and algorithms are suited for reconnaissance in current disaster-relief scenarios. The basic idea is to make use of some of the most common sensors and deploy some widely used algorithms in a disaster situation, and to evaluate how well the components work for these scenarios. We acquired the sensor data from two field experiments, one from a disaster-relief operation in a motorway tunnel, and one from a mapping experiment in a partly closed down motorway tunnel. Based on these data, which we make publicly available, we evaluate state-of-the-art and off-the-shelf mapping approaches. In our analysis, we integrate opinions and replies from first responders as well as from some algorithm developers on the usefulness of the data and the limitations of the deployed approaches, respectively. We discuss the lessons we learned during the two missions. These lessons are interesting for the community working in similar areas of urban search and rescue, particularly reconnaissance and search.},
  language  = {en}
}
@article{Ritz2000,
  author    = {Ritz, Thomas},
  title     = {Information Channels},
  series = {Information Technology. Nr. 52 (2000), H. 08. Mai 2000},
  journal   = {Information Technology. Nr. 52 (2000), H. 08. Mai 2000},
  pages     = {15 -- 15},
  year      = {2000},
  language  = {en}
}
@article{RitzStender2002,
  author    = {Ritz, Thomas and Stender, Michael},
  title     = {Mobilit{\"a}t meistern - Integration von mobilen Akteuren durch ad-hoc Integrationskonzepte},
  series = {Wireless Technologien nutzbar machen: UMTS und alternative Netzwerktechnologien f{\"u}r innovative mobile Anwendungen in Vertrieb und Service},
  journal   = {Wireless Technologien nutzbar machen: UMTS und alternative Netzwerktechnologien f{\"u}r innovative mobile Anwendungen in Vertrieb und Service},
  year      = {2002},
  language  = {de}
}
@article{RensVarzinczakMeyeretal.2010,
  author    = {Rens, Gavin and Varzinczak, Ivan and Meyer, Thomas and Ferrein, Alexander},
  title     = {A Logic for Reasoning about Actions and Explicit Observations},
  series = {AI 2010: Advances in Artificial Intelligence 23rd Australasian Joint Conference, Adelaide, Australia, December 7-10, 2010. Proceedings},
  journal   = {AI 2010: Advances in Artificial Intelligence 23rd Australasian Joint Conference, Adelaide, Australia, December 7-10, 2010. Proceedings},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-642-17431-5},
  pages     = {395 -- 404},
  year      = {2010},
  language  = {en}
}
@article{HeuermannSchiek1995,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {The double-LNN Calibration technique for scattering parameter measurements of microstrip devices},
  series = {Conference proceedings},
  journal   = {Conference proceedings},
  publisher = {NEXUS House},
  address   = {Kent},
  pages     = {343 -- 347},
  year      = {1995},
  language  = {en}
}
@article{RitzStender2004,
  author    = {Ritz, Thomas and Stender, Michael},
  title     = {Ad-hoc Anwendungsintegration mit mobilen CRM-Systement},
  series = {Electronic Business : Innovationen, Anwendungen und Technologien},
  journal   = {Electronic Business : Innovationen, Anwendungen und Technologien},
  editor    = {Weisbecker, Anette},
  publisher = {Fraunhofer-IRB-Verl.},
  address   = {Stuttgart},
  isbn      = {3-8167-6621-8},
  pages     = {92 -- 97},
  year      = {2004},
  language  = {de}
}
@article{FerreinNiemuellerSteinbauer2010,
  author    = {Ferrein, Alexander and Niem{\"u}ller, Tim and Steinbauer, Gerald},
  title     = {Team Zadeat 2010 : application for participation},
  pages     = {5 Seiten},
  year      = {2010},
  language  = {en}
}
@article{Heuermann1996,
  author    = {Heuermann, Holger},
  title     = {Sure Methods of On-Wafer Scattering Parameter Measurements with Self-Calibration Procedures},
  pages     = {136 -- 145},
  year      = {1996},
  language  = {en}
}
@article{HoffmannRohrbachUhletal.2022,
  author    = {Hoffmann, Andreas and Rohrbach, Felix and Uhl, Matthias and Ceblin, Maximilian and Bauer, Thomas and Mallah, Marcel and Jacob, Timo and Heuermann, Holger and Kuehne, Alexander J. C.},
  title     = {Atmospheric pressure plasma-jet treatment of polyacrylonitrile-nonwovens—Stabilization and roll-to-roll processing},
  series = {Journal of Applied Polymer Science},
  volume    = {139},
  journal   = {Journal of Applied Polymer Science},
  number    = {37},
  publisher = {Wiley},
  issn      = {0021-8995 (Print)},
  doi       = {10.1002/app.52887},
  pages     = {1 -- 9},
  year      = {2022},
  abstract  = {Carbon nanofiber nonwovens represent a powerful class of materials with prospective application in filtration technology or as electrodes with high surface area in batteries, fuel cells, and supercapacitors. While new precursor-to-carbon conversion processes have been explored to overcome productivity restrictions for carbon fiber tows, alternatives for the two-step thermal conversion of polyacrylonitrile precursors into carbon fiber nonwovens are absent. In this work, we develop a continuous roll-to-roll stabilization process using an atmospheric pressure microwave plasma jet. We explore the influence of various plasma-jet parameters on the morphology of the nonwoven and compare the stabilized nonwoven to thermally stabilized samples using scanning electron microscopy, differential scanning calorimetry, and infrared spectroscopy. We show that stabilization with a non-equilibrium plasma-jet can be twice as productive as the conventional thermal stabilization in a convection furnace, while producing electrodes of comparable electrochemical performance.},
  language  = {en}
}
@article{Ferrein2004,
  author    = {Ferrein, Alexander},
  title     = {Autonome Entscheidungsfindung bei Robotern : Planwirtschaft},
  series = {Linux-Magazin},
  journal   = {Linux-Magazin},
  number    = {7},
  issn      = {1432-640X (Print)},
  pages     = {50 -- 53},
  year      = {2004},
  language  = {de}
}
@article{FerreinDyllaLakemeyer2003,
  author    = {Ferrein, Alexander and Dylla, Frank and Lakemeyer, Gerhard},
  title     = {Specifying Multirobot Coordination in ICPGolog - From Simulation towards Real Robots / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  pages     = {1 -- 10},
  year      = {2003},
  language  = {en}
}
@article{Heuermann2003,
  author    = {Heuermann, Holger},
  title     = {GSOLT: the calibration procedure for all multi-port vector network analyzers},
  series = {IEEE MTT-S International Microwave Symposium digest : Philadelphia, Pennsylvania, 8 - 13 June 2003 ; [including: 2003 International Microwave Symposium digest, vol. 1-3, RF Integrated Circuit Symposium digest, Automatic RF Techniques Group Symposium digest . Vol. 3},
  journal   = {IEEE MTT-S International Microwave Symposium digest : Philadelphia, Pennsylvania, 8 - 13 June 2003 ; [including: 2003 International Microwave Symposium digest, vol. 1-3, RF Integrated Circuit Symposium digest, Automatic RF Techniques Group Symposium digest . Vol. 3},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {0-780-37696-X},
  pages     = {1815 -- 1818},
  year      = {2003},
  language  = {en}
}
@article{PoppelWolf2013,
  author    = {Poppel, Kristin Isabel and Wolf, Martin R.},
  title     = {M{\"o}glichkeiten und Potentiale von Revisionsmarketing},
  series = {Zeitschrift Interne Revision : ZIR ; Fachzeitschrift f{\"u}r Wissenschaft und Praxis},
  volume    = {48},
  journal   = {Zeitschrift Interne Revision : ZIR ; Fachzeitschrift f{\"u}r Wissenschaft und Praxis},
  number    = {4},
  publisher = {Erich Schmidt Verlag},
  address   = {Berlin},
  issn      = {0044-3816},
  pages     = {200 -- 208},
  year      = {2013},
  language  = {de}
}
@article{Heuermann1997,
  author    = {Heuermann, Holger},
  title     = {Microwave On-Wafer Measurements with Activ Needle Probe Tips},
  pages     = {208 -- 214},
  year      = {1997},
  language  = {en}
}
@article{HeuermannLuenebach2005,
  author    = {Heuermann, Holger and L{\"u}nebach, M.},
  title     = {A Novel Dual-Mode-Design for Push-Push Oscillators with Improved Phase Noise Performance. Heuermann, Holger; L{\"u}nebach, M.},
  series = {Conference proceedings : 3 - 7 October 2005, CNIT la D{\´e}fense, Paris, France; [comprises the] 35th European Microwave Conference 2005 ; The European Conference on Wireless Technology 2005 ; European Radar Conference 2005 ; GAAS 2005, The European Gallium A. Vol. 1},
  journal   = {Conference proceedings : 3 - 7 October 2005, CNIT la D{\´e}fense, Paris, France; [comprises the] 35th European Microwave Conference 2005 ; The European Conference on Wireless Technology 2005 ; European Radar Conference 2005 ; GAAS 2005, The European Gallium A. Vol. 1},
  publisher = {Horizon House Publ},
  address   = {London},
  isbn      = {2-9600551-0-1},
  pages     = {4 pp.},
  year      = {2005},
  language  = {en}
}
@article{Ritz2002,
  author    = {Ritz, Thomas},
  title     = {Modelling Production of personalized information services and their delivery on multiple distribution channels},
  series = {Personalization Techniques in Electronic Publishing on the Web. Workshop in the Framework of the 2nd international conference on Adaptive Hypermedia and adaptive web based systems (AH2002) in Malaga (ES)},
  journal   = {Personalization Techniques in Electronic Publishing on the Web. Workshop in the Framework of the 2nd international conference on Adaptive Hypermedia and adaptive web based systems (AH2002) in Malaga (ES)},
  pages     = {19 -- 30},
  year      = {2002},
  language  = {en}
}
@article{FerreinSteinbauerVassos2012,
  author    = {Ferrein, Alexander and Steinbauer, Gerald and Vassos, Stavros},
  title     = {Action-Based Imperative Programming with YAGI},
  pages     = {24 -- 31},
  year      = {2012},
  abstract  = {Many tasks for autonomous agents or robots are best described by a specification of the environment and a specification of the available actions the agent or robot can perform. Combining such a specification with the possibility to imperatively program a robot or agent is what we call the actionbased imperative programming. One of the most successful such approaches is Golog. In this paper, we draft a proposal for a new robot programming language YAGI, which is based on the action-based imperative programming paradigm. Our goal is to design a small, portable stand-alone YAGI interpreter. We combine the benefits of a principled domain specification with a clean, small and simple programming language, which does not exploit any side-effects from the implementation language. We discuss general requirements of action-based programming languages and outline YAGI, our action-based language approach which particularly aims at embeddability.},
  language  = {en}
}
@article{RitzBenz2004,
  author    = {Ritz, Thomas and Benz, Axel},
  title     = {Informationserfassung im Außendienst},
  series = {CRM-Systeme in produzierenden Unternehmen. - (IAO-Forum : mit Anwenderberichten)},
  volume    = {2004},
  journal   = {CRM-Systeme in produzierenden Unternehmen. - (IAO-Forum : mit Anwenderberichten)},
  editor    = {Spath, Dieter},
  publisher = {IRB-Verl.},
  address   = {Stuttgart},
  year      = {2004},
  language  = {de}
}
@article{FerreinLakemeyer2005,
  author    = {Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {Wie Roboter die Welt sehen : Roboterfußball im Dienst der Wissenschaft / Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {Bild und Erkenntnis : Formen und Funktionen des Bildes in Wissenschaft und Technik / RWTH. Andreas Beyer ; Markus Lohoff (Hrsg.)},
  journal   = {Bild und Erkenntnis : Formen und Funktionen des Bildes in Wissenschaft und Technik / RWTH. Andreas Beyer ; Markus Lohoff (Hrsg.)},
  publisher = {Deutscher Kunstverlag},
  address   = {M{\"u}nchen},
  isbn      = {3-422-06463-X},
  pages     = {360 -- 361},
  year      = {2005},
  language  = {de}
}
@article{FerreinHermannsLakemeyer2006,
  author    = {Ferrein, Alexander and Hermanns, Lutz and Lakemeyer, Gerhard},
  title     = {Comparing Sensor Fusion Techniques for Ball Position Estimation / Ferrein, Alexander ; Hermanns, Lutz ; Lakemeyer, Gerhard},
  series = {RoboCup 2005: Robot Soccer World Cup IX},
  journal   = {RoboCup 2005: Robot Soccer World Cup IX},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-35437-6},
  pages     = {154 -- 165},
  year      = {2006},
  language  = {en}
}
@article{FerreinSchifferLakemeyer2006,
  author    = {Ferrein, Alexander and Schiffer, Stefan and Lakemeyer, Gerhard},
  title     = {Football is coming Home / Schiffer, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {PCAR '06 Proceedings of the 2006 international symposium on Practical cognitive agents and robots},
  journal   = {PCAR '06 Proceedings of the 2006 international symposium on Practical cognitive agents and robots},
  publisher = {ACM},
  address   = {New York, NY},
  isbn      = {1-74052-130-7},
  pages     = {39 -- 50},
  year      = {2006},
  language  = {en}
}
@article{Heuermann2006,
  author    = {Heuermann, Holger},
  title     = {Multiport S-parameter calculation from two-port network analyzer measurements with or without switch matrix},
  series = {ARFTG Conference, 2006 67th, San Francisco, CA},
  journal   = {ARFTG Conference, 2006 67th, San Francisco, CA},
  isbn      = {978-0-7803-9529-9},
  pages     = {219 -- 222},
  year      = {2006},
  language  = {en}
}
@article{HeuermannErkens2006,
  author    = {Heuermann, Holger and Erkens, H.},
  title     = {Novel RF switch concepts for differential wireless communications frontends. Erkens, H.; Heuermann, H.},
  series = {IEEE Transactions on Microwave Theory and Techniques. 54 (2006), H. 6, Part 1},
  journal   = {IEEE Transactions on Microwave Theory and Techniques. 54 (2006), H. 6, Part 1},
  isbn      = {0018-9480},
  pages     = {2376 -- 2382},
  year      = {2006},
  language  = {en}
}
@article{FerreinLakemeyer2006,
  author    = {Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {Roboterfußball - Wissenschaft, die auch Spass macht / Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {RWTH Themen (2006)},
  journal   = {RWTH Themen (2006)},
  isbn      = {0179-079X},
  pages     = {36 -- 39},
  year      = {2006},
  language  = {de}
}
@article{Heuermann2006,
  author    = {Heuermann, Holger},
  title     = {Verringerung des Phasenrauschens von Oszillatoren durch Dual-Mode-Resonatoren},
  series = {HF-Report. 20 (2006), H. 5-6},
  journal   = {HF-Report. 20 (2006), H. 5-6},
  isbn      = {1431-827X},
  pages     = {43 -- 48},
  year      = {2006},
  language  = {en}
}
@article{FerreinMiesLakemeyer2008,
  author    = {Ferrein, Alexander and Mies, Christoph and Lakemeyer, Gerhard},
  title     = {Repairing Decision-Theoretic Policies Using Goal-Oriented Planning / Mies, Christoph ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {KI 2008: Advances in Artificial Intelligence : 31st Annual German Conference on AI, KI 2008, Kaiserslautern, Germany, September 23-26, 2008. Proceedings},
  journal   = {KI 2008: Advances in Artificial Intelligence : 31st Annual German Conference on AI, KI 2008, Kaiserslautern, Germany, September 23-26, 2008. Proceedings},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-85844-7},
  pages     = {267 -- 275},
  year      = {2008},
  language  = {en}
}
@article{FerreinRensPoel2009,
  author    = {Ferrein, Alexander and Rens, Gavin and Poel, Etienne van der},
  title     = {A BDI agent architecture for a POMDP planner / Rens, Gavin ; Ferrein, Alexander ; Poel, Etienne van der},
  pages     = {1 -- 6},
  year      = {2009},
  language  = {en}
}
@article{HeuermannSchiek1994,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Calibration of network analyser measurements with leakage errors},
  series = {Electronics letters. 30 (1994), H. 1},
  journal   = {Electronics letters. 30 (1994), H. 1},
  isbn      = {0013-5194},
  pages     = {52 -- 53},
  year      = {1994},
  language  = {en}
}
@article{LimpertWiesenFerreinetal.2019,
  author    = {Limpert, Nicolas and Wiesen, Patrick and Ferrein, Alexander and Kallweit, Stephan and Schiffer, Stefan},
  title     = {The ROSIN Project and its Outreach to South Africa},
  series = {R\&D Journal},
  volume    = {35},
  journal   = {R\&D Journal},
  pages     = {1 -- 6},
  year      = {2019},
  language  = {en}
}
@article{FerreinSchifferBooysenetal.2016,
  author    = {Ferrein, Alexander and Schiffer, Stefan and Booysen, T. and Stopforth, R.},
  title     = {Why it is harder to run RoboCup in South Africa: Experiences from German South African collaborations},
  series = {International Journal of Advanced Robotic Systems},
  volume    = {13},
  journal   = {International Journal of Advanced Robotic Systems},
  number    = {5},
  issn      = {1729-8806},
  doi       = {10.1177/1729881416662789},
  pages     = {1 -- 13},
  year      = {2016},
  abstract  = {Robots are widely used as a vehicle to spark interest in science and technology in learners. A number of initiatives focus on this issue, for instance, the Roberta Initiative, the FIRST Lego League, the World Robot Olympiad and RoboCup Junior. Robotic competitions are valuable not only for school learners but also for university students, as the RoboCup initiative shows. Besides technical skills, the students get some project exposure and experience what it means to finish their tasks on time. But qualifying students for future high-tech areas should not only be for students from developed countries. In this article, we present our experiences with research and education in robotics within the RoboCup initiative, in Germany and South Africa; we report on our experiences with trying to get the RoboCup initiative in South Africa going. RoboCup has a huge support base of academic institutions in Germany; this is not the case in South Africa. We present our 'north-south' collaboration initiatives in RoboCup between Germany and South Africa and discuss some of the reasons why we think it is harder to run RoboCup in South Africa.},
  language  = {en}
}
@article{AlhwarinFerreinScholl2014,
  author    = {Alhwarin, Faraj and Ferrein, Alexander and Scholl, Ingrid},
  title     = {IR stereo kinect: improving depth images by combining structured light with IR stereo},
  pages     = {1 -- 9},
  year      = {2014},
  language  = {en}
}
@article{HueningHeuermannWache2018,
  author    = {H{\"u}ning, Felix and Heuermann, Holger and Wache, Franz-Josef},
  title     = {Wireless CAN without WLAN or Bluetooth},
  series = {CAN Newsletter},
  journal   = {CAN Newsletter},
  number    = {December 2018},
  pages     = {44 -- 46},
  year      = {2018},
  abstract  = {In two developed concepts, dual-mode radio enables CAN participants to be integrated wirelessly into a CAN network. Constructed from a few components, a protocol-free, real-time transmission and thus transparent integration into CAN is provided.},
  language  = {en}
}
@article{FerreinCalmesLakemeyeretal.2006,
  author    = {Ferrein, Alexander and Calmes, Laurent and Lakemeyer, Gerhard and Wagner, Hermann},
  title     = {Von Schleiereulen und fussballspielenden Robotern / Calmes, Laurent ; Ferrein, Alexander ; Lakemeyer, Gerhard ; Wagner, Hermann},
  series = {RWTH Themen (2006)},
  journal   = {RWTH Themen (2006)},
  isbn      = {0179-079X},
  pages     = {30 -- 33},
  year      = {2006},
  language  = {de}
}
@article{FerreinStrackLakemeyer2006,
  author    = {Ferrein, Alexander and Strack, Andreas and Lakemeyer, Gerhard},
  title     = {Laser-Based Localization with Sparse Landmarks / Strack, Andreas ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {RoboCup 2005: Robot Soccer World Cup IX},
  journal   = {RoboCup 2005: Robot Soccer World Cup IX},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-35437-6},
  pages     = {569 -- 576},
  year      = {2006},
  language  = {en}
}
@article{VorstFerreinLakemeyer2006,
  author    = {Vorst, Phillip and Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {AllemaniACs3D team description},
  pages     = {1 -- 6},
  year      = {2006},
  language  = {en}
}
@article{FerreinSchifferLakemeyer2006,
  author    = {Ferrein, Alexander and Schiffer, Stefan and Lakemeyer, Gerhard},
  title     = {Qualitative World Models for Soccer Robots / Schiffer, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {Qualitative constraint calculi : application and integration ; KI 2006, 14 - 19 June 2006, Bremen, Germany ; 29th Annual German Conference on Artificial Intelligence ; workshop / Stefan W{\"o}lfl ... (eds.)},
  journal   = {Qualitative constraint calculi : application and integration ; KI 2006, 14 - 19 June 2006, Bremen, Germany ; 29th Annual German Conference on Artificial Intelligence ; workshop / Stefan W{\"o}lfl ... (eds.)},
  publisher = {Univ.},
  address   = {Bremen},
  isbn      = {3-88722-666-6},
  pages     = {3 -- 14},
  year      = {2006},
  language  = {en}
}
@article{HeuermannIbrahimHillebrand2007,
  author    = {Heuermann, Holger and Ibrahim, Irfan and Hillebrand, J.},
  title     = {Vector-Signal-Generator with Two ?'?'-PLL's / Ibrahim, I. ; Hillebrand, J. ; Heuermann, H.},
  series = {European Conference on Wireless Technologies, 2007. ECWT 2007 ; 8 - 10 October 2007 Munich, Germany},
  journal   = {European Conference on Wireless Technologies, 2007. ECWT 2007 ; 8 - 10 October 2007 Munich, Germany},
  isbn      = {978-2-87487-003-3},
  pages     = {1 -- 4},
  year      = {2007},
  language  = {en}
}
@article{HofmannLimpertMatareetal.2018,
  author    = {Hofmann, Till and Limpert, Nicolas and Matar{\´e}, Victor and Sch{\"o}nitz, Sebastian and Niemueller, Tim and Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {The Carologistics RoboCup Logistics Team 2018},
  year      = {2018},
  abstract  = {The Carologistics team participates in the RoboCup Logistics League for the seventh year. The RCLL requires precise vision, manipulation and path planning, as well as complex high-level decision making and multi-robot coordination. We outline our approach with an emphasis on recent modifications to those components. The team members in 2018 are David Bosen, Christoph Gollok, Mostafa Gomaa, Daniel Habering, Till Hofmann, Nicolas Limpert, Sebastian Sch{\"o}nitz, Morian Sonnet, Carsten Stoffels, and Tarik Viehmann. This paper is based on the last year's team description.},
  language  = {en}
}
@article{FerreinSchifferLakemeyer2008,
  author    = {Ferrein, Alexander and Schiffer, Stefan and Lakemeyer, Gerhard},
  title     = {A Fuzzy Set Semantics for Qualitative Fluents in the Situation Calculus / Ferrein, Alexander ; Schiffer, Stefan ; Lakemeyer, Gerhard},
  series = {Intelligent Robotics and Applications : First International Conference, ICIRA 2008 Wuhan, China, October 15-17, 2008 Proceedings, Part I},
  journal   = {Intelligent Robotics and Applications : First International Conference, ICIRA 2008 Wuhan, China, October 15-17, 2008 Proceedings, Part I},
  publisher = {Springer},
  address   = {Berlin},
  pages     = {498 -- 509},
  year      = {2008},
  language  = {en}
}
@article{WolfFoltzSchlicketal.2000,
  author    = {Wolf, Martin R. and Foltz, Christian and Schlick, Christopher and Luczak, Holger},
  title     = {Empirical Investigation of a workspace model for Chemical engineers / Wolf, Martin ; Foltz, Christian ; Schlick, Christopher ; Luczak, Holger},
  series = {Proceedings of the Human Factors and Ergonomics Society Annual Meeting July 2000. 44 (2000), H. 6},
  journal   = {Proceedings of the Human Factors and Ergonomics Society Annual Meeting July 2000. 44 (2000), H. 6},
  publisher = {-},
  pages     = {612 -- 615},
  year      = {2000},
  language  = {en}
}
@article{SchifferFerreinLakemeyer2015,
  author    = {Schiffer, Stefan and Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {Abstracting Away Low-Level Details in Service Robotics with Fuzzy Fluents},
  series = {Model-Driven Knowledge Engineering for Improved Software Modularity in Robotics and Automation. Workshop at European Robotics Forum 2015 Vienna, Austria, March 11-13, 2015.},
  journal   = {Model-Driven Knowledge Engineering for Improved Software Modularity in Robotics and Automation. Workshop at European Robotics Forum 2015 Vienna, Austria, March 11-13, 2015.},
  pages     = {1 -- 4},
  year      = {2015},
  language  = {en}
}
@article{Wolf2000,
  author    = {Wolf, Martin R.},
  title     = {Groupware related task design},
  series = {ACM SIGGROUP Bulletin},
  volume    = {21},
  journal   = {ACM SIGGROUP Bulletin},
  number    = {2},
  issn      = {2372-7403},
  doi       = {10.1145/605660.605662},
  pages     = {5 -- 8},
  year      = {2000},
  abstract  = {his report summarizes the results of a workshop on Groupware related task design which took place at the International Conference on Supporting Group Work Group'99, Arizona, from 14 th to 17 th November 1999. The workshop was addressed to people from different viewpoints, backgrounds, and domains: - Researchers dealing with questions of task analysis and task modeling for Groupware application from an academic point of view. They may contribute modelbased design approaches or theoretically oriented work - Practitioners with experience in the design and everyday use of groupware systems. They might refer to the practical side of the topic: "real" tasks, "real" problems, "real" users, etc.},
  language  = {en}
}
@article{HeuermannStolleSchiek1995,
  author    = {Heuermann, Holger and Stolle, Reinhard and Schiek, Burkhard},
  title     = {Novel Algorithms for FMCW Range Finding with Microwaves. Stolle, R.; Heuermann, H.; Schiek, B.},
  pages     = {129 -- 132},
  year      = {1995},
  language  = {en}
}
@article{HeuermannBaumannFauthetal.1994,
  author    = {Heuermann, Holger and Baumann, F.-M. and Fauth, G. and Albert, M.},
  title     = {Results of Network Analyzer Measurements with Leakage Errors Corrected with the TMS-15-Term Procedure},
  series = {On-Line Moisture Analysis of Raw Coal},
  journal   = {On-Line Moisture Analysis of Raw Coal},
  pages     = {1361 -- 1364},
  year      = {1994},
  language  = {en}
}
@article{NiemuellerLakemeyerFerreinetal.2013,
  author    = {Niem{\"u}ller, Tim and Lakemeyer, Gerhard and Ferrein, Alexander and Reuter, S. and Ewert, D. and Jeschke, S. and Pensky, D. and Karras, Ulrich},
  title     = {Proposal for advancements to the LLSF in 2014 and beyond},
  pages     = {Publ. online},
  year      = {2013},
  language  = {en}
}
@article{HeuermannSchiek1994,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Results of Network Analyzer Measurements with Leakage Errors Corrected with the TMS-15-Term Procedure},
  pages     = {1361 -- 1364},
  year      = {1994},
  language  = {en}
}
@article{Heuermann1997,
  author    = {Heuermann, Holger},
  title     = {Praezise Streuparametermessungen sind der Schluessel zur Modellierung elektrischer Schaltungen},
  series = {Neues von Rohde \& Schwarz (1997)},
  journal   = {Neues von Rohde \& Schwarz (1997)},
  pages     = {22 -- 23},
  year      = {1997},
  language  = {de}
}
@article{SchoppBritunVoracetal.2019,
  author    = {Schopp, Christoph and Britun, Nikolay and Vorac, Jan and Synek, Petr and Snyders, Rony and Heuermann, Holger},
  title     = {Thermal and Optical Study on the Frequency Dependence of an Atmospheric Microwave Argon Plasma Jet},
  series = {IEEE Transactions on Plasma Science},
  volume    = {47},
  journal   = {IEEE Transactions on Plasma Science},
  number    = {7},
  publisher = {IEEE},
  address   = {New York},
  issn      = {1939-9375},
  pages     = {3176 -- 3181},
  year      = {2019},
  language  = {en}
}
@article{Ritz2003,
  author    = {Ritz, Thomas},
  title     = {Mobile CRM-Systeme : Customer Relationship Management zur Unterst{\"u}tzung des Vertriebsaußendienstes},
  series = {Zeitschrift f{\"u}r wirtschaftlichen Fabrikbetrieb : ZWF ; Organ des VDI-Kompetenzfeldes Informationstechnik (VDI-KfIT)},
  volume    = {99},
  journal   = {Zeitschrift f{\"u}r wirtschaftlichen Fabrikbetrieb : ZWF ; Organ des VDI-Kompetenzfeldes Informationstechnik (VDI-KfIT)},
  number    = {12},
  issn      = {0932-0482 (Print)},
  pages     = {699 -- 702},
  year      = {2003},
  language  = {de}
}
@article{FerreinJacobsLakemeyer2005,
  author    = {Ferrein, Alexander and Jacobs, Stefan and Lakemeyer, Gerhard},
  title     = {Controlling Unreal Tournament 2004 Bots with the logic-based action language Golog / Jacobs, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {Proceedings of the First AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment (AIIDE).},
  journal   = {Proceedings of the First AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment (AIIDE).},
  pages     = {151 -- 152},
  year      = {2005},
  language  = {en}
}
@article{FerreinSteinbauer2016,
  author    = {Ferrein, Alexander and Steinbauer, Gerald},
  title     = {Looking back on 20 Years of RoboCup},
  series = {KI - K{\"u}nstliche Intelligenz},
  volume    = {30},
  journal   = {KI - K{\"u}nstliche Intelligenz},
  number    = {3-4},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1610-1987},
  doi       = {10.1007/s13218-016-0443-y},
  pages     = {321 -- 323},
  year      = {2016},
  language  = {en}
}
@article{FerreinRensMeyeretal.2011,
  author    = {Ferrein, Alexander and Rens, Gavin and Meyer, Thomas and Lakemeyer, Gerhard},
  title     = {A Logic for Specifying Partially Observable Stochastic Domains / Rens, Gavin ; Meyer, Thomas ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {Proceedings of the Ninth International Workshop pn non-Monotonic Reasoning, Action and Change (NRAC`11)},
  journal   = {Proceedings of the Ninth International Workshop pn non-Monotonic Reasoning, Action and Change (NRAC`11)},
  pages     = {15 -- 22},
  year      = {2011},
  language  = {en}
}
@article{HeuermannSchiek1994,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Scattering Parameter Measurements of Microstrip Devices using the Double-LNN Calibration Technique},
  series = {Conference proceedings : [Palais des Festivals et des Congr{\`e}s Cannes, France, 5 - 8 September 1994]},
  journal   = {Conference proceedings : [Palais des Festivals et des Congr{\`e}s Cannes, France, 5 - 8 September 1994]},
  publisher = {Nexus Business Communications},
  address   = {Swanley},
  isbn      = {0-9518032-5-5},
  year      = {1994},
  language  = {en}
}
@article{WolfSchlickSpringer1997,
  author    = {Wolf, Martin R. and Schlick, Christopher and Springer, J.},
  title     = {The use of implicit communication mechanisms in desktop-teleconferencing-systems},
  series = {Proceedings of WWDU '97 Tokyo, Fifth International Scientific Conference on Work with Display Units : November 3 - 5, 1997, Tokyo},
  journal   = {Proceedings of WWDU '97 Tokyo, Fifth International Scientific Conference on Work with Display Units : November 3 - 5, 1997, Tokyo},
  editor    = {Miyamoto, Hiroyuki},
  publisher = {-},
  address   = {Tokyo},
  pages     = {193 -- 194},
  year      = {1997},
  language  = {en}
}
@article{HeuermannHoltrup2009,
  author    = {Heuermann, Holger and Holtrup, Stephan},
  title     = {Fundamentals and ignition of a microplasma at 2.45 GHZ / Holtrup, Stephan ; Heuermann, Holger},
  series = {European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE},
  journal   = {European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {978-1-4244-4748-0},
  pages     = {1607 -- 1609},
  year      = {2009},
  language  = {en}
}
@article{HaagZontarSchleupenetal.2014,
  author    = {Haag, S. and Zontar, D. and Schleupen, Josef and M{\"u}ller, T. and Brecher, C.},
  title     = {Chain of refined perception in self-optimizing assembly of micro-optical systems},
  series = {Journal of sensors and sensor systems},
  volume    = {3},
  journal   = {Journal of sensors and sensor systems},
  number    = {1},
  publisher = {Copernicus Publ.},
  address   = {G{\"o}ttingen},
  issn      = {2194-878X},
  doi       = {10.5194/jsss-3-87-2014},
  pages     = {87 -- 95},
  year      = {2014},
  abstract  = {Today, the assembly of laser systems requires a large share of manual operations due to its complexity regarding the optimal alignment of optics. Although the feasibility of automated alignment of laser optics has been shown in research labs, the development effort for the automation of assembly does not meet economic requirements - especially for low-volume laser production. This paper presents a model-based and sensor-integrated assembly execution approach for flexible assembly cells consisting of a macro-positioner covering a large workspace and a compact micromanipulator with camera attached to the positioner. In order to make full use of available models from computer-aided design (CAD) and optical simulation, sensor systems at different levels of accuracy are used for matching perceived information with model data. This approach is named "chain of refined perception", and it allows for automated planning of complex assembly tasks along all major phases of assembly such as collision-free path planning, part feeding, and active and passive alignment. The focus of the paper is put on the in-process image-based metrology and information extraction used for identifying and calibrating local coordinate systems as well as the exploitation of that information for a part feeding process for micro-optics. Results will be presented regarding the processes of automated calibration of the robot camera as well as the local coordinate systems of part feeding area and robot base.},
  language  = {en}
}
@article{RietschBrunheimOrzadaetal.2019,
  author    = {Rietsch, Stefan H. G. and Brunheim, Sascha and Orzada, Stephan and Voelker, Maximilian N. and Maderwald, Stefan and Bitz, Andreas and Gratz, Marcel and Ladd, Mark E. and Quick, Harald H.},
  title     = {Development and evaluation of a 16-channel receive-only RF coil to improve 7T ultra-high field body MRI with focus on the spine},
  series = {Magnetic Resonance in Medicine},
  journal   = {Magnetic Resonance in Medicine},
  number    = {Early view},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1522-2594},
  doi       = {10.1002/mrm.27731},
  year      = {2019},
  language  = {en}
}
@article{FaganBitzBjoerkmanBurtscheretal.2021,
  author    = {Fagan, Andrew J. and Bitz, Andreas and Bj{\"o}rkman-Burtscher, Isabella M. and Collins, Christopher M. and Kimbrell, Vera and Raaijmakers, Alexander J. E.},
  title     = {7T MR Safety},
  series = {Journal of Magnetic Resonance Imaging (JMRI)},
  volume    = {53},
  journal   = {Journal of Magnetic Resonance Imaging (JMRI)},
  number    = {2},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1522-2586},
  doi       = {10.1002/jmri.27319},
  pages     = {333 -- 346},
  year      = {2021},
  language  = {en}
}
@article{SerrorHackHenzeetal.2021,
  author    = {Serror, Martin and Hack, Sacha and Henze, Martin and Schuba, Marko and Wehrle, Klaus},
  title     = {Challenges and Opportunities in Securing the Industrial Internet of Things},
  series = {IEEE Transactions on Industrial Informatics},
  volume    = {17},
  journal   = {IEEE Transactions on Industrial Informatics},
  number    = {5},
  publisher = {IEEE},
  address   = {New York},
  issn      = {1941-0050},
  doi       = {10.1109/TII.2020.3023507},
  pages     = {2985 -- 2996},
  year      = {2021},
  language  = {en}
}
@article{FiedlerLaddClemensetal.2020,
  author    = {Fiedler, Thomas M. and Ladd, Mark E. and Clemens, Markus and Bitz, Andreas},
  title     = {Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging},
  series = {IEEE Letters on Electromagnetic Compatibility Practice and Applications},
  volume    = {2},
  journal   = {IEEE Letters on Electromagnetic Compatibility Practice and Applications},
  number    = {3},
  publisher = {IEEE},
  address   = {New York, NY},
  isbn      = {2637-6423},
  doi       = {10.1109/LEMCPA.2020.3029747},
  pages     = {1 -- 8},
  year      = {2020},
  abstract  = {Magnetic resonance imaging (MRI) is one of the most important medical imaging techniques. Since the introduction of MRI in the mid-1980s, there has been a continuous trend toward higher static magnetic fields to obtain i.a. a higher signal-to-noise ratio. The step toward ultra-high-field (UHF) MRI at 7 Tesla and higher, however, creates several challenges regarding the homogeneity of the spin excitation RF transmit field and the RF exposure of the subject. In UHF MRI systems, the wavelength of the RF field is in the range of the diameter of the human body, which can result in inhomogeneous spin excitation and local SAR hotspots. To optimize the homogeneity in a region of interest, UHF MRI systems use parallel transmit systems with multiple transmit antennas and time-dependent modulation of the RF signal in the individual transmit channels. Furthermore, SAR increases with increasing field strength, while the SAR limits remain unchanged. Two different approaches to generate the RF transmit field in UHF systems using antenna arrays close and remote to the body are investigated in this letter. Achievable imaging performance is evaluated compared to typical clinical RF transmit systems at lower field strength. The evaluation has been performed under consideration of RF exposure based on local SAR and tissue temperature. Furthermore, results for thermal dose as an alternative RF exposure metric are presented.},
  language  = {en}
}
@article{HueningBackes2020,
  author    = {H{\"u}ning, Felix and Backes, Andreas},
  title     = {Direct observation of large Barkhausen jump in thin Vicalloy wires},
  series = {IEEE Magnetics Letters},
  volume    = {11},
  journal   = {IEEE Magnetics Letters},
  number    = {Art. 2506504},
  publisher = {IEEE},
  address   = {New York, NY},
  isbn      = {1949-307X},
  doi       = {10.1109/LMAG.2020.3046411},
  pages     = {1 -- 4},
  year      = {2020},
  language  = {en}
}
@article{ReinhardtBitzElOuardietal.2007,
  author    = {Reinhardt, T. and Bitz, Andreas and El Ouardi, A. and Streckert, J. and Sommer, A. and Lerchl, A. and Hansen, V.},
  title     = {Exposure set-ups for in vivo experiments using radial waveguides},
  series = {Radiation Protection Dosimetry},
  volume    = {124},
  journal   = {Radiation Protection Dosimetry},
  number    = {1},
  issn      = {1742-3406},
  doi       = {10.1093/rpd/ncm370},
  pages     = {21 -- 26},
  year      = {2007},
  language  = {en}
}
@article{SommerBitzStreckertetal.2007,
  author    = {Sommer, Angela M. and Bitz, Andreas and Streckert, Joachim and Hansen, Volkert W. and Lerchl, Alexander},
  title     = {Lymphoma development in mice chronically exposed to UMTS-modulated radiofrequency electromagnetic fields},
  series = {Radiation Research},
  volume    = {168},
  journal   = {Radiation Research},
  number    = {1},
  issn      = {1938-5404},
  doi       = {10.1667/RR0857.1},
  pages     = {72 -- 80},
  year      = {2007},
  language  = {en}
}
@article{SukhotinaStreckertBitzetal.2006,
  author    = {Sukhotina, Irina and Streckert, Joachim R. and Bitz, Andreas and Hansen, Volkert W. and Lerchl, Alexander},
  title     = {1800 MHz electromagnetic field effects on melatonin release from isolated pineal glands},
  series = {Journal of Pineal Research},
  volume    = {40},
  journal   = {Journal of Pineal Research},
  number    = {1},
  issn      = {1600-079X},
  doi       = {10.1111/j.1600-079X.2005.00284.x},
  pages     = {86 -- 91},
  year      = {2006},
  language  = {en}
}
@article{FrankeStreckertBitzetal.2005,
  author    = {Franke, Helmut and Streckert, Joachim and Bitz, Andreas and Goeke, Johannes and Hansen, Volkert and Ringelstein, E. Bernd and Nattk{\"a}mper, Heiner and Galle, Hans-Joachim and St{\"o}gbauer, Florian},
  title     = {Effects of Universal Mobile Telecommunications System (UMTS) electromagnetic fields on the blood-brain barrier in vitro},
  series = {Radiation Research},
  volume    = {164},
  journal   = {Radiation Research},
  number    = {3},
  issn      = {1938-5404},
  doi       = {10.1667/RR3424.1},
  pages     = {258 -- 269},
  year      = {2005},
  language  = {en}
}
@article{WissenBogdanskiScheeretal.2005,
  author    = {Wissen, M. and Bogdanski, N. and Scheer, H.-C. and Bitz, Andreas and Ahrens, G. and Gruetzner, G.},
  title     = {Implication of the light polarisation for UV curing of pre-patterned resists},
  series = {Microelectronic Engineering},
  volume    = {78-79},
  journal   = {Microelectronic Engineering},
  issn      = {0167-9317},
  doi       = {10.1016/j.mee.2004.12.099},
  pages     = {659 -- 664},
  year      = {2005},
  language  = {en}
}
@article{NdoumbeMbonjoMbonjoStreckertBitzetal.2004,
  author    = {Ndoumb{\`e} Mbonjo Mbonjo, H. and Streckert, J. and Bitz, Andreas and Hansen, V. and Glasmachers, A. and Gencol, S. and Rozic, D.},
  title     = {Generic UMTS test signal for RF bioelectromagnetic studies},
  series = {Bioelectromagnetics},
  volume    = {25},
  journal   = {Bioelectromagnetics},
  number    = {6},
  issn      = {1521-186X},
  doi       = {10.1002/bem.20007},
  pages     = {415 -- 425},
  year      = {2004},
  language  = {en}
}
@article{SommerStreckertBitzetal.2004,
  author    = {Sommer, Angela M. and Streckert, Joachim and Bitz, Andreas and Hansen, Volkert W. and Lerchl, Alexander},
  title     = {No effects of GSM-modulated 900 MHz electromagnetic fields on survival rate and spontaneous development of lymphoma in female AKR/J mice},
  series = {BMC Cancer},
  volume    = {77},
  journal   = {BMC Cancer},
  number    = {4},
  doi       = {10.1186/1471-2407-4-77},
  year      = {2004},
  language  = {en}
}
@article{HansenBitzStreckert1999,
  author    = {Hansen, Volkert W. and Bitz, Andreas and Streckert, Joachim R.},
  title     = {RF Exposure of Biological Systems in Radial Waveguides},
  series = {IEEE Transactions on Electromagnetic Compatibility},
  volume    = {41},
  journal   = {IEEE Transactions on Electromagnetic Compatibility},
  number    = {4},
  issn      = {1558-187X},
  doi       = {10.1109/15.809852},
  pages     = {487 -- 493},
  year      = {1999},
  language  = {en}
}
@article{HueningDeMatteis2020,
  author    = {H{\"u}ning, Felix and De Matteis, Stefan},
  title     = {Entwicklung eines taktilen HMI f{\"u}r sehbehinderte und blinde Nutzerinnen und Nutzer},
  series = {Blind - sehbehindert},
  volume    = {140},
  journal   = {Blind - sehbehindert},
  number    = {2},
  publisher = {Edition Bentheim},
  address   = {W{\"u}rzburg},
  issn      = {0176-7836},
  pages     = {9 -- 19},
  year      = {2020},
  language  = {de}
}
@article{Koehler2020,
  author    = {K{\"o}hler, Klemens},
  title     = {A conflict theory perspective of IT attacks - consequences for IT security education},
  number    = {Preprint},
  year      = {2020},
  abstract  = {Cyberspace is "the environment formed by physical and non-physical components to store, modify, and exchange data using computer networks" (NATO CCDCOE). Beyond that, it is an environment where people interact. IT attacks are hostile, non-cooperative interactions that can be described with conflict theory. Applying conflict theory to IT security leads to different objectives for end-user education, requiring different formats like agency-based competence developing games.},
  language  = {en}
}
@article{LeiseEsserEichenlaubetal.2021,
  author    = {Leise, Philipp and Eßer, Arved and Eichenlaub, Tobias and Schleiffer, Jean-Eric and Altherr, Lena and Rinderknecht, Stephan and Pelz, Peter F.},
  title     = {Sustainable system design of electric powertrains - comparison of optimization methods},
  series = {Engineering Optimization},
  journal   = {Engineering Optimization},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {0305-215X},
  doi       = {10.1080/0305215X.2021.1928660},
  year      = {2021},
  abstract  = {The transition within transportation towards battery electric vehicles can lead to a more sustainable future. To account for the development goal 'climate action' stated by the United Nations, it is mandatory, within the conceptual design phase, to derive energy-efficient system designs. One barrier is the uncertainty of the driving behaviour within the usage phase. This uncertainty is often addressed by using a stochastic synthesis process to derive representative driving cycles and by using cycle-based optimization. To deal with this uncertainty, a new approach based on a stochastic optimization program is presented. This leads to an optimization model that is solved with an exact solver. It is compared to a system design approach based on driving cycles and a genetic algorithm solver. Both approaches are applied to find efficient electric powertrains with fixed-speed and multi-speed transmissions. Hence, the similarities, differences and respective advantages of each optimization procedure are discussed.},
  language  = {en}
}
@article{AltherrEdererLorenzetal.2014,
  author    = {Altherr, Lena and Ederer, Thorsten and Lorenz, Ulf and Pelz, Peter F. and P{\"o}ttgen, Philipp},
  title     = {Experimental validation of an enhanced system synthesis approach},
  series = {Operations Research Proceedings 2014},
  journal   = {Operations Research Proceedings 2014},
  editor    = {L{\"u}bbecke, Marco and Koster, Arie and Letmathe, Peter and Madlener, Reihard and Peis, Britta and Walther, Grit},
  publisher = {Springer},
  address   = {Basel},
  isbn      = {978-3-319-28695-2},
  doi       = {10.1007/978-3-319-28697-6_1},
  pages     = {6},
  year      = {2014},
  abstract  = {Planning the layout and operation of a technical system is a common task for an engineer. Typically, the workflow is divided into consecutive stages: First, the engineer designs the layout of the system, with the help of his experience or of heuristic methods. Secondly, he finds a control strategy which is often optimized by simulation. This usually results in a good operating of an unquestioned sys- tem topology. In contrast, we apply Operations Research (OR) methods to find a cost-optimal solution for both stages simultaneously via mixed integer program- ming (MILP). Technical Operations Research (TOR) allows one to find a provable global optimal solution within the model formulation. However, the modeling error due to the abstraction of physical reality remains unknown. We address this ubiq- uitous problem of OR methods by comparing our computational results with mea- surements in a test rig. For a practical test case we compute a topology and control strategy via MILP and verify that the objectives are met up to a deviation of 8.7\%.},
  language  = {en}
}
@article{VergePoettgenAltherretal.2016,
  author    = {Verg{\´e}, Angela and P{\"o}ttgen, Philipp and Altherr, Lena and Ederer, Thorsten and Pelz, Peter F.},
  title     = {Lebensdauer als Optimierungsziel: Algorithmische Struktursynthese am Beispiel eines hydrostatischen Getriebes},
  series = {O+P - {\"O}lhydraulik und Pneumatik},
  volume    = {60},
  journal   = {O+P - {\"O}lhydraulik und Pneumatik},
  number    = {1-2},
  editor    = {Greuloch, Ivo and Weber, Manfred and Meier, Miles},
  publisher = {Vereinigte Fachverl.},
  address   = {Mainz},
  issn      = {1614-9602},
  pages     = {114 -- 121},
  year      = {2016},
  abstract  = {Verf{\"u}gbarkeit und Nachhaltigkeit sind wichtige Anforderungen bei der Planung langlebiger technischer Systeme. Meist werden bei Lebensdaueroptimierungen lediglich einzelne Komponenten vordefinierter Systeme untersucht. Ob eine optimale Lebensdauer eine g{\"a}nzlich andere Systemvariante bedingt, wird nur selten hinterfragt. Technical Operations Research (TOR) erlaubt es, aus Obermengen technischer Systeme automatisiert die lebensdaueroptimale Systemstruktur auszuw{\"a}hlen. Der Artikel zeigt dies am Beispiel eines hydrostatischen Getriebes.},
  language  = {de}
}
@article{SunAltherrPeietal.2018,
  author    = {Sun, Hui and Altherr, Lena and Pei, Ji and Pelz, Peter F. and Yuan, Shouqi},
  title     = {Optimal booster station design and operation under uncertain load},
  series = {Applied Mechanics and Materials},
  volume    = {885},
  journal   = {Applied Mechanics and Materials},
  publisher = {Trans Tech Publications},
  address   = {B{\"a}ch},
  issn      = {1662-7482},
  doi       = {10.4028/www.scientific.net/AMM.885.102},
  pages     = {102 -- 115},
  year      = {2018},
  abstract  = {Given industrial applications, the costs for the operation and maintenance of a pump system typically far exceed its purchase price. For finding an optimal pump configuration which minimizes not only investment, but life-cycle costs, methods like Technical Operations Research which is based on Mixed-Integer Programming can be applied. However, during the planning phase, the designer is often faced with uncertain input data, e.g. future load demands can only be estimated. In this work, we deal with this uncertainty by developing a chance-constrained two-stage (CCTS) stochastic program. The design and operation of a booster station working under uncertain load demand are optimized to minimize total cost including purchase price, operation cost incurred by energy consumption and penalty cost resulting from water shortage. We find optimized system layouts using a sample average approximation (SAA) algorithm, and analyze the results for different risk levels of water shortage. By adjusting the risk level, the costs and performance range of the system can be balanced, and thus the system's resilience can be engineered},
  language  = {en}
}
@article{AltherrBroetzDietrichetal.2018,
  author    = {Altherr, Lena and Br{\"o}tz, Nicolas and Dietrich, Ingo and Gally, Tristan and Geßner, Felix and Kloberdanz, Hermann and Leise, Philipp and Pelz, Peter Franz and Schlemmer, Pia and Schmitt, Andreas},
  title     = {Resilience in mechanical engineering - a concept for controlling uncertainty during design, production and usage phase of load-carrying structures},
  series = {Applied Mechanics and Materials},
  volume    = {885},
  journal   = {Applied Mechanics and Materials},
  publisher = {Trans Tech Publications},
  address   = {B{\"a}ch},
  isbn      = {1662-7482},
  doi       = {10.4028/www.scientific.net/AMM.885.187},
  pages     = {187 -- 198},
  year      = {2018},
  abstract  = {Resilience as a concept has found its way into different disciplines to describe the ability of an individual or system to withstand and adapt to changes in its environment. In this paper, we provide an overview of the concept in different communities and extend it to the area of mechanical engineering. Furthermore, we present metrics to measure resilience in technical systems and illustrate them by applying them to load-carrying structures. By giving application examples from the Collaborative Research Centre (CRC) 805, we show how the concept of resilience can be used to control uncertainty during different stages of product life.},
  language  = {en}
}
@article{RauschFriesenAltherretal.2018,
  author    = {Rausch, Lea and Friesen, John and Altherr, Lena and Meck, Marvin and Pelz, Peter F.},
  title     = {A holistic concept to design optimal water supply infrastructures for informal settlements using remote sensing data},
  series = {Remote Sensing},
  volume    = {10},
  journal   = {Remote Sensing},
  number    = {2},
  publisher = {MDPI},
  address   = {Basel},
  isbn      = {2072-4292},
  doi       = {10.3390/rs10020216},
  pages     = {1 -- 23},
  year      = {2018},
  abstract  = {Ensuring access to water and sanitation for all is Goal No. 6 of the 17 UN Sustainability Development Goals to transform our world. As one step towards this goal, we present an approach that leverages remote sensing data to plan optimal water supply networks for informal urban settlements. The concept focuses on slums within large urban areas, which are often characterized by a lack of an appropriate water supply. We apply methods of mathematical optimization aiming to find a network describing the optimal supply infrastructure. Hereby, we choose between different decentral and central approaches combining supply by motorized vehicles with supply by pipe systems. For the purposes of illustration, we apply the approach to two small slum clusters in Dhaka and Dar es Salaam. We show our optimization results, which represent the lowest cost water supply systems possible. Additionally, we compare the optimal solutions of the two clusters (also for varying input parameters, such as population densities and slum size development over time) and describe how the result of the optimization depends on the entered remote sensing data.},
  language  = {en}
}
@article{AltherrEdererPfetschetal.2018,
  author    = {Altherr, Lena and Ederer, Thorsten and Pfetsch, Marc E. and Pelz, Peter F.},
  title     = {Maschinelles Design eines optimalen Getriebes},
  series = {ATZ - Automobiltechnische Zeitschrift},
  volume    = {120},
  journal   = {ATZ - Automobiltechnische Zeitschrift},
  number    = {10},
  publisher = {Springer Nature},
  address   = {Cham},
  isbn      = {2192-8800},
  doi       = {10.1007/s35148-018-0131-3},
  pages     = {72 -- 77},
  year      = {2018},
  abstract  = {Nahezu 100.000 denkbare Strukturen kann ein Getriebe bei gleicher Funktion aufweisen - je nach Ganganzahl und gefordertem Freiheitsgrad. Mit dem traditionellen Ansatz bei der Entwicklung, einzelne vielversprechende Systemkonfigurationen manuell zu identifizieren und zu vergleichen, k{\"o}nnen leicht innovative und vor allem kostenminimale L{\"o}sungen {\"u}bersehen werden. Im Rahmen eines Forschungsprojekts hat die TU Darmstadt spezielle Optimierungsmethoden angewendet, um auch bei großen L{\"o}sungsr{\"a}umen zielsicher ein f{\"u}r die individuellen Zielstellungen optimales Layout zu finden.},
  language  = {de}
}
@article{AltherrJoggerstLeiseetal.2018,
  author    = {Altherr, Lena and Joggerst, Laura and Leise, Philipp and Pfetsch, Marc E. and Schmitt, Andreas and Wendt, Janine},
  title     = {On obligations in the development process of resilient systems with algorithmic design methods},
  series = {Applied Mechanics and Materials},
  volume    = {885},
  journal   = {Applied Mechanics and Materials},
  number    = {885},
  publisher = {Trans Tech Publications},
  address   = {B{\"a}ch},
  isbn      = {1662-7482},
  doi       = {10.4028/www.scientific.net/AMM.885.240},
  pages     = {240 -- 252},
  year      = {2018},
  abstract  = {Advanced computational methods are needed both for the design of large systems and to compute high accuracy solutions. Such methods are efficient in computation, but the validation of results is very complex, and highly skilled auditors are needed to verify them. We investigate legal questions concerning obligations in the development phase, especially for technical systems developed using advanced methods. In particular, we consider methods of resilient and robust optimization. With these techniques, high performance solutions can be found, despite a high variety of input parameters. However, given the novelty of these methods, it is uncertain whether legal obligations are being met. The aim of this paper is to discuss if and how the choice of a specific computational method affects the developer's product liability. The review of legal obligations in this paper is based on German law and focuses on the requirements that must be met during the design and development process.},
  language  = {en}
}
@article{PoettgenEdererAltherretal.2015,
  author    = {P{\"o}ttgen, Philipp and Ederer, Thorsten and Altherr, Lena and Lorenz, Ulf and Pelz, Peter F.},
  title     = {Examination and optimization of a heating circuit for energy-efficient buildings},
  series = {Energy Technology},
  volume    = {4},
  journal   = {Energy Technology},
  number    = {1},
  publisher = {WILEY-VCH Verlag},
  address   = {Weinheim},
  isbn      = {2194-4296},
  doi       = {10.1002/ente.201500252},
  pages     = {136 -- 144},
  year      = {2015},
  abstract  = {The conference center darmstadtium in Darmstadt is a prominent example of energy efficient buildings. Its heating system consists of different source and consumer circuits connected by a Zortstr{\"o}m reservoir. Our goal was to reduce the energy costs of the system as much as possible. Therefore, we analyzed its supply circuits. The first step towards optimization is a complete examination of the system: 1) Compilation of an object list for the system, 2) collection of the characteristic curves of the components, and 3) measurement of the load profiles of the heat and volume-flow demand. Instead of modifying the system manually and testing the solution by simulation, the second step was the creation of a global optimization program. The objective was to minimize the total energy costs for one year. We compare two different topologies and show opportunities for significant savings.},
  language  = {en}
}
@article{AltherrEdererPoettgenetal.2015,
  author    = {Altherr, Lena and Ederer, Thorsten and P{\"o}ttgen, Philipp and Lorenz, Ulf and Pelz, Peter F.},
  title     = {Multicriterial optimization of technical systems considering multiple load and availability scenarios},
  series = {Applied Mechanics and Materials},
  volume    = {807},
  journal   = {Applied Mechanics and Materials},
  editor    = {Pelz, Peter F. and Groche, Peter},
  isbn      = {1660-9336},
  doi       = {10.4028/www.scientific.net/AMM.807.247},
  pages     = {247 -- 256},
  year      = {2015},
  abstract  = {Cheap does not imply cost-effective -- this is rule number one of zeitgeisty system design. The initial investment accounts only for a small portion of the lifecycle costs of a technical system. In fluid systems, about ninety percent of the total costs are caused by other factors like power consumption and maintenance. With modern optimization methods, it is already possible to plan an optimal technical system considering multiple objectives. In this paper, we focus on an often neglected contribution to the lifecycle costs: downtime costs due to spontaneous failures. Consequently, availability becomes an issue.},
  language  = {en}
}
@article{CzarneckiBensbergAuth2019,
  author    = {Czarnecki, Christian and Bensberg, Frank and Auth, Gunnar},
  title     = {Die Rolle von Softwarerobotern f{\"u}r die zuk{\"u}nftige Arbeitswelt},
  series = {HMD Praxis der Wirtschaftsinformatik},
  volume    = {56},
  journal   = {HMD Praxis der Wirtschaftsinformatik},
  number    = {4},
  publisher = {Springer},
  address   = {Cham},
  issn      = {2198-2775},
  doi       = {10.1365/s40702-019-00548-z},
  pages     = {795 -- 808},
  year      = {2019},
  abstract  = {Im Rahmen der Digitalisierung ist die zunehmende Automatisierung von bisher manuellen Prozessschritten ein Aspekt, der massive Auswirkungen auf die zuk{\"u}nftige Arbeitswelt haben wird. In diesem Kontext werden an den Einsatz von Softwarerobotern zur Prozessautomatisierung hohe Erwartungen gekn{\"u}pft. Bei den Implementierungsans{\"a}tzen wird die Diskussion aktuell insbesondere durch Robotic Process Automation (RPA) und Chatbots gepr{\"a}gt. Beide Ans{\"a}tze verfolgen das gemeinsame Ziel einer 1:1-Automatisierung von menschlichen Handlungen und dadurch ein direktes Ersetzen von Mitarbeitern durch Maschinen. Bei RPA werden Prozesse durch Softwareroboter erlernt und automatisiert ausgef{\"u}hrt. Dabei emulieren RPA-Roboter die Eingaben auf der bestehenden Pr{\"a}sentationsschicht, so dass keine {\"A}nderungen an vorhandenen Anwendungssystemen notwendig sind. Am Markt werden bereits unterschiedliche RPA-L{\"o}sungen als Softwareprodukte angeboten. Durch Chatbots werden Ein- und Ausgaben von Anwendungssystemen {\"u}ber nat{\"u}rliche Sprache realisiert. Dadurch ist die Automatisierung von unternehmensexterner Kommunikation (z. B. mit Kunden) aber auch von unternehmensinternen Assistenzt{\"a}tigkeiten m{\"o}glich. Der Beitrag diskutiert die Auswirkungen von Softwarerobotern auf die Arbeitswelt anhand von Anwendungsbeispielen und erl{\"a}utert die unternehmensindividuelle Entscheidung {\"u}ber den Einsatz von Softwarerobotern anhand von Effektivit{\"a}ts- und Effizienzzielen.},
  language  = {de}
}
@article{BensbergAuthCzarnecki2018,
  author    = {Bensberg, Frank and Auth, Gunnar and Czarnecki, Christian},
  title     = {Einsatz von Text Analytics zur Unterst{\"u}tzung literaturintensiver Forschungsprozesse: Konzeption, Realisierung und Lessons Learned},
  series = {Anwendungen und Konzepte der Wirtschaftsinformatik},
  volume    = {2018},
  journal   = {Anwendungen und Konzepte der Wirtschaftsinformatik},
  number    = {8},
  publisher = {AKWI},
  address   = {Luzern},
  issn      = {2296-4592},
  doi       = {10.26034/lu.akwi.2018.3221},
  pages     = {1 -- 6},
  year      = {2018},
  abstract  = {Das anhaltende Wachstum wissenschaftlicher Ver{\"o}ffentlichungen wirft die Fragestellung auf, wie Literaturana-lysen im Rahmen von Forschungsprozessen digitalisiert und somit produktiver realisiert werden k{\"o}nnen. Insbesondere in informationstechnischen Fachgebieten ist die Forschungspraxis durch ein rasant wachsendes Publikationsaufkommen gekennzeichnet. Infolgedessen bietet sich der Einsatz von Methoden der Textanalyse (Text Analytics) an, die Textdaten automatisch vorbereiten und verarbeiten k{\"o}nnen. Erkenntnisse entstehen dabei aus Analysen von Wortarten und Subgruppen, Korrelations- sowie Zeitreihenanalysen. Dieser Beitrag stellt die Konzeption und Realisierung eines Prototypen vor, mit dem Anwender bibliographische Daten aus der etablierten Literaturdatenbank EBSCO Discovery Service mithilfe textanalytischer Methoden erschließen k{\"o}nnen. Der Prototyp basiert auf dem Analysesystem IBM Watson Explorer, das Hochschulen lizenzkostenfrei zur Verf{\"u}gung steht. Potenzielle Adressaten des Prototypen sind Forschungseinrichtungen, Beratungsunternehmen sowie Entscheidungstr{\"a}ger in Politik und Unternehmenspraxis.},
  language  = {de}
}
@article{CzarneckiWinkelmannSpiliopoulou2013,
  author    = {Czarnecki, Christian and Winkelmann, Axel and Spiliopoulou, Myra},
  title     = {Referenzprozessabl{\"a}ufe f{\"u}r Telekommunikationsunternehmen: Eine Erweiterung des eTOM-Modells},
  series = {Wirtschaftsinformatik},
  volume    = {55},
  journal   = {Wirtschaftsinformatik},
  number    = {2},
  publisher = {Springer Fachmedien},
  address   = {Wiesbaden},
  issn      = {1861-8936},
  doi       = {10.1007/s11576-013-0351-9},
  pages     = {83 -- 97},
  year      = {2013},
  abstract  = {Der Telekommunikationsmarkt erf{\"a}hrt substanzielle Ver{\"a}nderungen. Neue Gesch{\"a}ftsmodelle, innovative Dienstleistungen und Technologien erfordern Reengineering, Transformation und Prozessstandardisierung. Mit der Enhanced Telecom Operation Map (eTOM) bietet das TM Forum ein international anerkanntes de facto Referenz-Prozess-Framework basierend auf spezifischen Anforderungen und Auspr{\"a}gungen der Telekommunikationsindustrie an. Allerdings enth{\"a}lt dieses Referenz-Framework nur eine hierarchische Sammlung von Prozessen auf unterschiedlichen Abstraktionsebenen. Eine Kontrollsicht verstanden als sequenzielle Anordnung von Aktivit{\"a}ten und daraus resultierend ein realer Prozessablauf fehlt ebenso wie eine Ende-zu-Ende-Sicht auf den Kunden. In diesem Artikel erweitern wir das eTOM-Referenzmodell durch Referenzprozessabl{\"a}ufe, in welchen wir das Wissen {\"u}ber Prozesse in Telekommunikationsunternehmen abstrahieren und generalisieren. Durch die Referenzprozessabl{\"a}ufe werden Unternehmen bei dem strukturierten und transparenten (Re-)Design ihrer Prozesse unterst{\"u}tzt. Wir demonstrieren die Anwendbarkeit und N{\"u}tzlichkeit unserer Referenzprozessabl{\"a}ufe in zwei Fallstudien und evaluieren diese anhand von Kriterien f{\"u}r die Bewertung von Referenzmodellen. Die Referenzprozessabl{\"a}ufe wurden vom TM Forum in den Standard aufgenommen und als Teil von eTOM Version 9 ver{\"o}ffentlicht. Dar{\"u}ber hinaus diskutieren wir die Komponenten unseres Ansatzes, die auch außerhalb der Telekommunikationsindustrie angewandt werden k{\"o}nnen.},
  language  = {de}
}
@article{CzarneckiSpiliopoulou2012,
  author    = {Czarnecki, Christian and Spiliopoulou, Myra},
  title     = {A holistic framework for the implementation of a next generation network},
  series = {International Journal of Business Information Systems},
  volume    = {9},
  journal   = {International Journal of Business Information Systems},
  number    = {4},
  publisher = {Inderscience Enterprises},
  address   = {Olney, Bucks},
  issn      = {1746-0972},
  doi       = {10.1504/IJBIS.2012.046291},
  pages     = {385 -- 401},
  year      = {2012},
  abstract  = {As the potential of a next generation network (NGN) is recognised, telecommunication companies consider switching to it. Although the implementation of an NGN seems to be merely a modification of the network infrastructure, it may trigger or require changes in the whole company, because it builds upon the separation between service and transport, a flexible bundling of services to products and the streamlining of the IT infrastructure. We propose a holistic framework, structured into the layers 'strategy', 'processes' and 'information systems' and incorporate into each layer all concepts necessary for the implementation of an NGN, as well as the alignment of these concepts. As a first proof-of-concept for our framework we have performed a case study on the introduction of NGN in a large telecommunication company; we show that our framework captures all topics that are affected by an NGN implementation.},
  language  = {en}
}
@article{CzarneckiWinkelmannSpiliopoulou2010,
  author    = {Czarnecki, Christian and Winkelmann, Axel and Spiliopoulou, Myra},
  title     = {Services in electronic telecommunication markets: a framework for planning the virtualization of processes},
  series = {Electronic Markets},
  volume    = {20},
  journal   = {Electronic Markets},
  number    = {3-4},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1422-8890},
  doi       = {10.1007/s12525-010-0045-8},
  pages     = {197 -- 207},
  year      = {2010},
  abstract  = {The potential of electronic markets in enabling innovative product bundles through flexible and sustainable partnerships is not yet fully exploited in the telecommunication industry. One reason is that bundling requires seamless de-assembling and re-assembling of business processes, whilst processes in telecommunication companies are often product-dependent and hard to virtualize. We propose a framework for the planning of the virtualization of processes, intended to assist the decision maker in prioritizing the processes to be virtualized: (a) we transfer the virtualization pre-requisites stated by the Process Virtualization Theory in the context of customer-oriented processes in the telecommunication industry and assess their importance in this context, (b) we derive IT-oriented requirements for the removal of virtualization barriers and highlight their demand on changes at different levels of the organization. We present a first evaluation of our approach in a case study and report on lessons learned and further steps to be performed.},
  language  = {en}
}
@article{CzarneckiDietze2020,
  author    = {Czarnecki, Christian and Dietze, Christian},
  title     = {Gestaltungsorientierte Forschung am Beispiel der Referenzmodellierung in der Telekommunikationsindustrie},
  series = {HMD Praxis der Wirtschaftsinformatik},
  volume    = {57},
  journal   = {HMD Praxis der Wirtschaftsinformatik},
  number    = {2},
  publisher = {Springer Nature},
  address   = {Cham},
  issn      = {2198-2775},
  doi       = {10.1365/s40702-020-00594-y},
  pages     = {310 -- 323},
  year      = {2020},
  abstract  = {Am Beispiel der Telekommunikationsindustrie zeigt der Beitrag eine konkrete Ausgestaltung anwendungsorientierter Forschung, die sowohl f{\"u}r die Praxis als auch f{\"u}r die Wissenschaft nutzen- und erkenntnisbringend ist. Forschungsgegenstand sind die Referenzmodelle des Industriegremiums TM Forum, die von vielen Telekommunikationsunternehmen zur Transformation ihrer Strukturen und Systeme genutzt werden. Es wird die langj{\"a}hrige Forschungst{\"a}tigkeit bei der Weiterentwicklung und Anwendung dieser Referenzmodelle beschrieben. Dabei wird ein konsequent gestaltungsorientierter Forschungsansatz verfolgt. Das Zusammenspiel aus kontinuierlicher Weiterentwicklung in Zusammenarbeit mit einem Industriegremium und der Anwendung in vielf{\"a}ltigen Praxisprojekten f{\"u}hrt zu einer erfolgreichen Symbiose aus praktischer Nutzengenerierung sowie wissenschaftlichem Erkenntnisgewinn. Der Beitrag stellt den gew{\"a}hlten Forschungsansatz anhand konkreter Beispiele vor. Darauf basierend werden Empfehlungen und Herausforderungen f{\"u}r eine gestaltungs- und praxisorientierte Forschung diskutiert.},
  language  = {de}
}
@article{CzarneckiGeierPflug2017,
  author    = {Czarnecki, Christian and Geier, Jari and Pflug, Karolin},
  title     = {Netzvirtualisierung durch SDN und NFV : Unternehmensprozesse auf dem Pr{\"u}fstand},
  series = {LANline},
  journal   = {LANline},
  publisher = {AWI Aktuelles Wissen Verl.-Ges.},
  address   = {Trostberg},
  issn      = {0942-4172},
  year      = {2017},
  abstract  = {Kundenanforderungen an Netzwerke haben sich in den vergangenen Jahren stark ver{\"a}ndert. Mit NFV und SDN sind Unternehmen technisch in der Lage, diesen gerecht zu werden. Die Provider stehen jedoch vor großen Herausforderungen: Insbesondere Produkte und Prozesse m{\"u}ssen angepasst und agiler werden, um die St{\"a}rken von NFV und SDN zum Kundenvorteil auszuspielen.},
  language  = {de}
}
@article{CzarneckiHeuserKraemeretal.2006,
  author    = {Czarnecki, Christian and Heuser, Marcus and Kr{\"a}mer, Christian and Stummer, Christoph and Theisinger, Felix and Wettklo, Michael},
  title     = {How to get more customer satisfaction : Erfolg im Wettbewerb durch kundenzentrierte Prozesse},
  series = {Detecon Management Report},
  journal   = {Detecon Management Report},
  number    = {3},
  publisher = {Detecon Internat. GmbH},
  address   = {Eschborn},
  issn      = {1867-3147},
  pages     = {29 -- 33},
  year      = {2006},
  abstract  = {Unternehmen sind in der Regel {\"u}berzeugt, dass sie die Bed{\"u}rfnisse ihrer Kunden in den Mittelpunkt stellen. Aber in der direkten Interaktion mit dem Kunden zeigen sie h{\"a}ufig Schw{\"a}chen. Der folgende Beitrag illustriert, wie durch eine konsequente Ausrichtung der Wertsch{\"o}pfungsprozesse auf die zentralen Kundenbed{\"u}rfnisse ein Dreifacheffekt erzielt werden kann: Nachhaltig erh{\"o}hte Kundenzufriedenheit, gesteigerte Effizienz und eine Differenzierung im Wettbewerb.},
  language  = {de}
}
@article{BensbergAuthCzarnecki2020,
  author    = {Bensberg, Frank and Auth, Gunnar and Czarnecki, Christian},
  title     = {Literaturanalyse mit Text Mining},
  series = {E-Learning and Education (eleed)},
  journal   = {E-Learning and Education (eleed)},
  number    = {13},
  editor    = {Haake, J{\"o}rg M.},
  publisher = {FernUniversit{\"a}t in Hagen},
  address   = {Hagen},
  issn      = {1860-7470},
  pages     = {1 -- 13},
  year      = {2020},
  abstract  = {Die Durchf{\"u}hrung einer systematischen Literaturrecherche ist eine zentrale Kompetenz wissenschaftlichen Arbeitens und bildet daher einen festen Ausbildungsbestandteil von Bachelor- und Masterstudieng{\"a}ngen. In entsprechenden Lehrveranstaltungen werden Studierende zwar mit den grundlegenden Hilfsmitteln zur Suche und Verwaltung von Literatur vertraut gemacht, allerdings werden die Potenziale textanalytischer Methoden und Anwendungssysteme (Text Mining, Text Analytics) dabei zumeist nicht abgedeckt. Folglich werden Datenkompetenzen, die zur systemgest{\"u}tzten Analyse und Erschließung von Literaturdaten erforderlich sind, nicht hinreichend ausgepr{\"a}gt. Um diese Kompetenzl{\"u}cke zu adressieren, ist an der Hochschule Osnabr{\"u}ck eine Lehrveranstaltung konzipiert und projektorientiert umgesetzt worden, die sich insbesondere an Studierende wirtschaftswissenschaftlicher Studieng{\"a}nge richtet. Dieser Beitrag dokumentiert die fachliche sowie technische Ausgestaltung dieser Veranstaltung und zeigt Potenziale f{\"u}r die k{\"u}nftige Weiterentwicklung auf.},
  language  = {de}
}