@article{Ritz2002,
  author    = {Ritz, Thomas},
  title     = {Mass Customized Production of Information Services - The combination of economies-of-scale with economies-of-scope},
  series = {Media firms : structures, operations, and performance ; [World Media Economics Conference, 5th : 2002 : Turku, Finland] / ed. by Robert G. Picard},
  journal   = {Media firms : structures, operations, and performance ; [World Media Economics Conference, 5th : 2002 : Turku, Finland] / ed. by Robert G. Picard},
  publisher = {Erlbaum},
  address   = {Mahwah, NJ [u.a.]},
  isbn      = {0-8058-4165-2},
  pages     = {267 S. : graph. Darst.},
  year      = {2002},
  language  = {en}
}
@article{NiemuellerFerreinBecketal.2010,
  author    = {Niem{\"u}ller, Tim and Ferrein, Alexander and Beck, Daniel and Lakemeyer, Gerhard},
  title     = {Design Principles of the Component-Based Robot Software Framework Fawkes},
  series = {Simulation, Modeling, and Programming for Autonomous Robots},
  journal   = {Simulation, Modeling, and Programming for Autonomous Robots},
  pages     = {300 -- 311},
  year      = {2010},
  language  = {en}
}
@article{FerreinSteinbauer2010,
  author    = {Ferrein, Alexander and Steinbauer, Gerald},
  title     = {On the Way to High-Level Programming for Resource-Limited Embedded Systems with Golog},
  series = {Simulation, Modeling, and Programming for Autonomous Robots},
  journal   = {Simulation, Modeling, and Programming for Autonomous Robots},
  pages     = {229 -- 240},
  year      = {2010},
  language  = {en}
}
@article{HeuermannIbrahim2008,
  author    = {Heuermann, Holger and Ibrahim, Irfan},
  title     = {Novel theory and architecture of a vector signal generator implemented with two PLLs / Ibrahim, Irfan ; Heuermann, Holger},
  series = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  journal   = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  isbn      = {978-2-87487-008-8},
  pages     = {85 -- 88},
  year      = {2008},
  language  = {en}
}
@article{Heuermann2008,
  author    = {Heuermann, Holger},
  title     = {Dual mode radio: A new tranceiver architecture for UWB and 60 GHz-applications},
  series = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  journal   = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  isbn      = {978-2-87487-008-8},
  pages     = {147 -- 150},
  year      = {2008},
  language  = {en}
}
@article{BeckBuchleitnerFerreinetal.2014,
  author    = {Beck, Daniel and Buchleitner, Martin and Ferrein, Alexander and Niem{\"u}ller, Tim and Steinbauer, Gerald},
  title     = {Mostly Harmless \& AllemaniACs - mixed innovations},
  pages     = {1 -- 8},
  year      = {2014},
  language  = {en}
}
@inproceedings{ArndtConzenElsenetal.2023,
  author    = {Arndt, Tobias and Conzen, Max and Elsen, Ingo and Ferrein, Alexander and Galla, Oskar and K{\"o}se, Hakan and Schiffer, Stefan and Tschesche, Matteo},
  title     = {Anomaly detection in the metal-textile industry for the reduction of the cognitive load of quality control workers},
  series = {PETRA '23: Proceedings of the 16th International Conference on PErvasive Technologies Related to Assistive Environments},
  booktitle = {PETRA '23: Proceedings of the 16th International Conference on PErvasive Technologies Related to Assistive Environments},
  publisher = {ACM},
  isbn      = {9798400700699},
  doi       = {10.1145/3594806.3596558},
  pages     = {535 -- 542},
  year      = {2023},
  abstract  = {This paper presents an approach for reducing the cognitive load for humans working in quality control (QC) for production processes that adhere to the 6σ -methodology. While 100\% QC requires every part to be inspected, this task can be reduced when a human-in-the-loop QC process gets supported by an anomaly detection system that only presents those parts for manual inspection that have a significant likelihood of being defective. This approach shows good results when applied to image-based QC for metal textile products.},
  language  = {en}
}
@inproceedings{AlhwarinFerreinScholl2019,
  author    = {Alhwarin, Faraj and Ferrein, Alexander and Scholl, Ingrid},
  title     = {An Efficient Hashing Algorithm for NN Problem in HD Spaces},
  series = {Lecture Notes in Computer Science},
  booktitle = {Lecture Notes in Computer Science},
  isbn      = {978-303005498-4},
  doi       = {10.1007/978-3-030-05499-1_6},
  pages     = {101 -- 115},
  year      = {2019},
  language  = {en}
}
@article{FerreinDyllaLakemeyer2002,
  author    = {Ferrein, Alexander and Dylla, Frank and Lakemeyer, Gerhard},
  title     = {Acting and Deliberating using Golog in Robotic Soccer - A Hybrid Architecture / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {Proc. 3rd International Cognitive Robotics Workshop (CogRob 2002)},
  journal   = {Proc. 3rd International Cognitive Robotics Workshop (CogRob 2002)},
  pages     = {1 -- 7},
  year      = {2002},
  language  = {en}
}
@article{Ferrein2008,
  author    = {Ferrein, Alexander},
  title     = {Logic-based robot control in highly dynamic domains / Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {Robotics and Autonomous Systems. 56 (2008), H. 11},
  journal   = {Robotics and Autonomous Systems. 56 (2008), H. 11},
  isbn      = {0921-8890},
  pages     = {980 -- 991},
  year      = {2008},
  language  = {en}
}
@book{Ferrein2008,
  author    = {Ferrein, Alexander},
  title     = {Robot controllers for highly dynamic environments with real-time constraints},
  pages     = {XVI; 247 S. : Ill., graph. Darst},
  year      = {2008},
  language  = {en}
}
@article{KoenigWolf2018,
  author    = {K{\"o}nig, Johannes Alexander and Wolf, Martin R.},
  title     = {GHOST: An Evaluated Competence Developing Game for Cybersecurity Awareness Training},
  series = {International Journal on Advances in Security},
  volume    = {11},
  journal   = {International Journal on Advances in Security},
  number    = {3 \& 4},
  publisher = {IARIA Journals},
  issn      = {1942-2636},
  pages     = {274 -- 287},
  year      = {2018},
  abstract  = {To train end users how to interact with digital systems is indispensable to ensure a strong computer security. 'Competence Developing Game'-based approaches are particularly suitable for this purpose because of their motivation-and simulation-aspects. In this paper the Competence Developing Game 'GHOST' for cybersecurity awareness trainings and its underlying patterns are described. Accordingly, requirements for an 'Competence Developing Game' based training are discussed. Based on these requirements it is shown how a game can fulfill these requirements. A supplementary game interaction design and a corresponding evaluation study is shown. The combination of training requirements and interaction design is used to create a 'Competence Developing Game'-based training concept. A part of these concept is implemented into a playable prototype that serves around one hour of play respectively training time. This prototype is used to perform an evaluation of the game and training aspects of the awareness training. Thereby, the quality of the game aspect and the effectiveness of the training aspect are shown.},
  language  = {en}
}
@article{FerreinSteinbauerMcPhillipsetal.2008,
  author    = {Ferrein, Alexander and Steinbauer, Gerald and McPhillips, Graeme and Potgieter, Anet},
  title     = {RoboCup Standard Platform League - Team Zadeat : an intercontinental research effort},
  pages     = {1 -- 7},
  year      = {2008},
  language  = {en}
}
@inproceedings{SchoppNachtrodtHeuermannetal.2012,
  author    = {Schopp, Christoph and Nachtrodt, Frederik and Heuermann, Holger and Scherer, Ulrich W. and Mostacci, Domiziano and Finger, Torsten and Tietsch, Wolfgang},
  title     = {A novel 2.45 GHz/200 W Microwave Plasma Jet for High Temperature Applications above 3600 K},
  series = {Journal of Physics : Conference Series},
  volume    = {406},
  booktitle = {Journal of Physics : Conference Series},
  number    = {012029},
  issn      = {1742-6596},
  pages     = {5},
  year      = {2012},
  language  = {en}
}
@book{RitzBenzStender2003,
  author    = {Ritz, Thomas and Benz, Axel and Stender, Michael},
  title     = {Marktstudie mobile CRM-Systeme},
  publisher = {Fraunhofer-IRB-Verl.},
  address   = {Stuttgart},
  isbn      = {3-8167-6361-8},
  pages     = {244 S. : Ill., graph. Darst.},
  year      = {2003},
  language  = {en}
}
@inproceedings{NiemuellerLakemeyerFerrein2013,
  author    = {Niem{\"u}ller, Tim and Lakemeyer, Gerhard and Ferrein, Alexander},
  title     = {Aspects of integrating diverse software into robotic systems extended abstract},
  series = {ICRA 2013 - 8th Workshop on Software Development and Integration in Robotics (SDIR), Karlsruhe, Germany},
  booktitle = {ICRA 2013 - 8th Workshop on Software Development and Integration in Robotics (SDIR), Karlsruhe, Germany},
  pages     = {1 -- 2},
  year      = {2013},
  language  = {en}
}
@article{FerreinKonurLakemeyer2004,
  author    = {Ferrein, Alexander and Konur, Savas and Lakemeyer, Gerhard},
  title     = {Learning Decision Trees for Action Selection in Soccer Agents / Konur, Savas ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  pages     = {1 -- 7},
  year      = {2004},
  language  = {en}
}
@article{Ferrein2005,
  author    = {Ferrein, Alexander},
  title     = {Specifying Soccer Moves with Golog},
  series = {Book of abstracts : Cologne, 15 - 17 September 2004 / 1st International Working Conference IT and Sport \& 5th conference DVS-Section Computer Science in Sport},
  journal   = {Book of abstracts : Cologne, 15 - 17 September 2004 / 1st International Working Conference IT and Sport \& 5th conference DVS-Section Computer Science in Sport},
  publisher = {German Sport Univ.},
  address   = {K{\"o}ln},
  isbn      = {3-00-014576-1},
  pages     = {161 -- 165},
  year      = {2005},
  language  = {en}
}
@article{SchoppDollGraeseretal.2016,
  author    = {Schopp, Christoph and Doll, Timo and Gr{\"a}ser, Ulrich and Harzheim, Thomas and Heuermann, Holger and Kling, Rainer and Marso, Michael},
  title     = {Capacitively Coupled High-Pressure Lamp Using Coaxial Line Networks},
  series = {IEEE Transactions on Microwave Theory and Techniques},
  volume    = {64},
  journal   = {IEEE Transactions on Microwave Theory and Techniques},
  number    = {10},
  publisher = {IEEE},
  address   = {New York, NY},
  issn      = {0018-9480},
  doi       = {10.1109/TMTT.2016.2600326},
  pages     = {3363 -- 3368},
  year      = {2016},
  abstract  = {This paper describes the development of a capacitively coupled high-pressure lamp with input power between 20 and 43 W at 2.45 GHz, using a coaxial line network. Compared with other electrodeless lamp systems, no cavity has to be used and a reduction in the input power is achieved. Therefore, this lamp is an alternative to the halogen incandescent lamp for domestic lighting. To serve the demands of domestic lighting, the filling of the lamp is optimized over all other resulting requirements, such as high efficacy at low induced powers and fast startups. A workflow to develop RF-driven plasma applications is presented, which makes use of the hot S-parameter technique. Descriptions of the fitting process inside a circuit and FEM simulator are given. Results of the combined ignition and operation network from simulations and measurements are compared. An initial prototype is built and measurements of the lamp's lighting properties are presented along with an investigation of the efficacy optimizations using large signal amplitude modulation. With this lamp, an efficacy of 135 lmW -1 is achieved.},
  language  = {en}
}
@inproceedings{HeuermannHarzheimMuehmel2021,
  author    = {Heuermann, Holger and Harzheim, Thomas and M{\"u}hmel, Marc},
  title     = {A maritime harmonic radar search and rescue system using passive and active tags},
  series = {2020 17th European Radar Conference (EuRAD)},
  booktitle = {2020 17th European Radar Conference (EuRAD)},
  publisher = {IEEE},
  address   = {New York, NY},
  isbn      = {978-2-87487-061-3},
  doi       = {10.1109/EuRAD48048.2021.00030},
  pages     = {73 -- 76},
  year      = {2021},
  abstract  = {This article introduces a new maritime search and rescue system based on S-band illumination harmonic radar (HR). Passive and active tags have been developed and tested attached to life jackets and a rescue boat. This system was able to detect and range the active tags up to a range of 5800 m in tests on the Baltic Sea with an antenna input power of only 100 W. All electronic GHz components of the system, excluding the S-band power amplifier, were custom developed for this purpose. Special attention is given to the performance and conceptual differences between passive and active tags used in the system and integration with a maritime X-band navigation radar is demonstrated.},
  language  = {en}
}
@article{HeuermannSchiek1997,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Line Network Network (LNN): an alternative in-fixture calibration procedure},
  series = {IEEE transactions on microwave theory and techniques : MTT ; a publication of the IEEE Microwave Theory and Techniques Society. 45 (1997), H. 3},
  journal   = {IEEE transactions on microwave theory and techniques : MTT ; a publication of the IEEE Microwave Theory and Techniques Society. 45 (1997), H. 3},
  isbn      = {0018-9480},
  pages     = {408 -- 413},
  year      = {1997},
  language  = {en}
}
@article{HeuermannPetersSchmitzetal.2005,
  author    = {Heuermann, Holger and Peters, N. and Schmitz, T. and Sadeghfam, Arash},
  title     = {Concept of Balanced Antennas with Load-Invariant Base Impedance Using a Two Element LC-Coupler. Peters, N., Schmitz, Th., Sadeghfam, A., Heuermann, H.},
  series = {Proceedings of the European microwave association : journal of the European microwave association},
  journal   = {Proceedings of the European microwave association : journal of the European microwave association},
  publisher = {PLUS},
  address   = {Pisa},
  pages     = {117 -- 122},
  year      = {2005},
  language  = {en}
}
@inproceedings{AlhwarinFerreinScholl2018,
  author    = {Alhwarin, Faraj and Ferrein, Alexander and Scholl, Ingrid},
  title     = {CRVM: Circular Random Variable-based Matcher - A Novel Hashing Method for Fast NN Search in High-dimensional Spaces},
  series = {Proceedings of the 7th International Conference on Pattern Recognition Applications and Methods, ICPRAM 2018},
  booktitle = {Proceedings of the 7th International Conference on Pattern Recognition Applications and Methods, ICPRAM 2018},
  isbn      = {978-989-758-276-9},
  doi       = {10.5220/0006692802140221},
  pages     = {214 -- 221},
  year      = {2018},
  language  = {en}
}
@article{FoltzSchneiderWolfetal.2008,
  author    = {Foltz, Christian and Schneider, Nicole and Wolf, Martin R. and Kausch, Bernhard and Schlick, Christopher and Luczak, Holger},
  title     = {Usability engineering},
  series = {Collaborative and distributed chemical engineering : from understanding to substantial design process support; results of the IMPROVE Project. - (Lecture notes in computer science ; 4970)},
  journal   = {Collaborative and distributed chemical engineering : from understanding to substantial design process support; results of the IMPROVE Project. - (Lecture notes in computer science ; 4970)},
  editor    = {Nagl, Manfred},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-70552-9},
  doi       = {10.1007/978-3-540-70552-9_21},
  pages     = {527 -- 554},
  year      = {2008},
  language  = {en}
}
@inproceedings{AlhwarinSchifferFerreinetal.2018,
  author    = {Alhwarin, Faraj and Schiffer, Stefan and Ferrein, Alexander and Scholl, Ingrid},
  title     = {Optimized KinectFusion Algorithm for 3D Scanning Applications},
  series = {Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 2: BIOIMAGING},
  booktitle = {Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 2: BIOIMAGING},
  isbn      = {978-989-758-278-3},
  doi       = {10.5220/0006594700500057},
  pages     = {50 -- 57},
  year      = {2018},
  language  = {en}
}
@article{FerreinBeckLakemeyer2007,
  author    = {Ferrein, Alexander and Beck, Daniel and Lakemeyer, Gerhard},
  title     = {A Simulation Environment for Middle-Size Robots with Multi-level Abstraction / Beck, Daniel ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {RoboCup 2007: Robot Soccer World Cup XI},
  journal   = {RoboCup 2007: Robot Soccer World Cup XI},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-68846-4},
  pages     = {136 -- 147},
  year      = {2007},
  language  = {en}
}
@article{HeuermannSadeghfam2007,
  author    = {Heuermann, Holger and Sadeghfam, Arash},
  title     = {On the design of multimode integrated circuits in multilayered processes / Sadeghfam, A. ; Heuermann, H.},
  series = {European Microwave Conference, 2007, 9-12 Oct. 2007},
  journal   = {European Microwave Conference, 2007, 9-12 Oct. 2007},
  isbn      = {978-2-87487-001-9},
  pages     = {516 -- 519},
  year      = {2007},
  language  = {en}
}
@article{FerreinJacobsSchifferetal.2009,
  author    = {Ferrein, Alexander and Jacobs, Stefan and Schiffer, Stefan and Beck, Daniel},
  title     = {Robust Collision Avoidance in Unknown Domestic Environments / Jacobs, Stefan ; Ferrein, Alexander ; Schiffer, Stefan ; Beck, Daniel ; Lakemeyer, Gerhard},
  series = {ROBOCUP 2009: ROBOT SOCCER WORLD CUP XIII},
  journal   = {ROBOCUP 2009: ROBOT SOCCER WORLD CUP XIII},
  publisher = {Springer},
  address   = {Berlin},
  pages     = {116 -- 127},
  year      = {2009},
  language  = {en}
}
@article{FerreinDyllaLakemeyeretal.2005,
  author    = {Ferrein, Alexander and Dylla, Frank and Lakemeyer, Gerhard and Murray, Jan},
  title     = {Towards a League-Independent Qualitative Soccer Theory for RoboCup / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard ; Murray, Jan ; Obst, Oliver ; R{\"o}fer, Thomas ; Stolzenburg, Frieder ; Visser, Ubbo},
  series = {RoboCup 2004: Robot Soccer World Cup VIII / Daniele Nardi ... (ed.).},
  journal   = {RoboCup 2004: Robot Soccer World Cup VIII / Daniele Nardi ... (ed.).},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-25046-8},
  pages     = {611 -- 618},
  year      = {2005},
  language  = {en}
}
@article{RoepkeKoehlerDruryetal.2020,
  author    = {Roepke, Rene and K{\"o}hler, Klemens and Drury, Vincent and Schroeder, Ulrik and Wolf, Martin R. and Meyer, Ulrike},
  title     = {A pond full of phishing games - analysis of learning games for anti-phishing education},
  series = {Model-driven Simulation and Training Environments for Cybersecurity. MSTEC 2020},
  journal   = {Model-driven Simulation and Training Environments for Cybersecurity. MSTEC 2020},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-030-62433-0},
  doi       = {10.1007/978-3-030-62433-0_32020},
  pages     = {41 -- 60},
  year      = {2020},
  abstract  = {Game-based learning is a promising approach to anti-phishing education, as it fosters motivation and can help reduce the perceived difficulty of the educational material. Over the years, several prototypes for game-based applications have been proposed, that follow different approaches in content selection, presentation, and game mechanics. In this paper, a literature and product review of existing learning games is presented. Based on research papers and accessible applications, an in-depth analysis was conducted, encompassing target groups, educational contexts, learning goals based on Bloom's Revised Taxonomy, and learning content. As a result of this review, we created the publications on games (POG) data set for the domain of anti-phishing education. While there are games that can convey factual and conceptual knowledge, we find that most games are either unavailable, fail to convey procedural knowledge or lack technical depth. Thus, we identify potential areas of improvement for games suitable for end-users in informal learning contexts.},
  language  = {en}
}
@article{SchoppRohrbachLangeretal.2024,
  author    = {Schopp, Christoph and Rohrbach, Felix and Langer, Luc and Heuermann, Holger},
  title     = {Detection of welding wire length by active S11 measurement},
  series = {IEEE Transactions on Plasma Science},
  journal   = {IEEE Transactions on Plasma Science},
  number    = {Early Access},
  publisher = {IEEE},
  issn      = {0093-3813 (Print)},
  doi       = {10.1109/TPS.2024.3356659},
  pages     = {1 -- 6},
  year      = {2024},
  abstract  = {A novel method to determine the extruded length of a metallic wire for a directed energy deposition (DED) process using a microwave (MW) plasma jet with a straight-through wire feed is presented. The method is based on the relative comparison of the measured frequency response obtained by the large-signal scattering parameter (Hot-S) technique. In the practical working range, repeatability of less than 6\% for a nonactive plasma and 9\% for the active plasma state is found. Measurements are conducted with a focus on a simple solution to decrease the processing time and reduce the integration time of the process into the existing hardware. It is shown that monitoring a single frequency for magnitude and phase changes is sufficient to achieve good accuracy. A combination of different measurement values to determine the length is possible. The applicability to different diameter of the same material is shown as well as a contact detection of the wire and metallic substrate.},
  language  = {en}
}
@article{HeuermannSchiek1993,
  author    = {Heuermann, Holger and Schiek, B.},
  title     = {Procedures for the Determination of the Scattering Parameters for Network Analyzer Calibration},
  series = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 42 (1993), H. 2},
  journal   = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 42 (1993), H. 2},
  isbn      = {0018-9456},
  pages     = {528 -- 531},
  year      = {1993},
  language  = {en}
}
@inproceedings{Ritz2001,
  author    = {Ritz, Thomas},
  title     = {DISMED - an innovation portal for printing and media industry},
  series = {CRIS 2000 : the fifth conference on Current Research Information Systems in Europe, in Helsinki (Finland), 25-27 May 2000},
  booktitle = {CRIS 2000 : the fifth conference on Current Research Information Systems in Europe, in Helsinki (Finland), 25-27 May 2000},
  publisher = {CORDIS Archive},
  address   = {[s.l.]},
  pages     = {9 S. : graph. Darst.},
  year      = {2001},
  language  = {en}
}
@article{FerreinBeckLakemeyer2009,
  author    = {Ferrein, Alexander and Beck, Daniel and Lakemeyer, Gerhard},
  title     = {Landmark-Based Representations for Navigating Holonomic Soccer Robots / Beck, Daniel ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {RoboCup 2008 : robot soccer world cup XII / Luca Iocchi ... (eds.)},
  journal   = {RoboCup 2008 : robot soccer world cup XII / Luca Iocchi ... (eds.)},
  publisher = {Springer},
  address   = {Heidelberg},
  isbn      = {978-3-642-02921-9},
  pages     = {25 -- 36},
  year      = {2009},
  language  = {en}
}
@article{HeuermannSadeghfam2008,
  author    = {Heuermann, Holger and Sadeghfam, Arash},
  title     = {Electrically tunable bandpass filter with integrated carrier suppression for UHF RFID systems / Sadeghfam, Arash ; Heuermann, Holger},
  series = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  journal   = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  isbn      = {978-2-87487-008-8},
  pages     = {306 -- 309},
  year      = {2008},
  language  = {en}
}
@article{Heuermann2008,
  author    = {Heuermann, Holger},
  title     = {Calibration of a Network Analyzer Without a Thru Connection for Nonlinear and Multiport Measurements},
  series = {IEEE Transactions on Microwave Theory and Techniques. 56 (2008), H. 11, 1},
  journal   = {IEEE Transactions on Microwave Theory and Techniques. 56 (2008), H. 11, 1},
  isbn      = {0018-9480},
  pages     = {2505 -- 2510},
  year      = {2008},
  language  = {en}
}
@article{HeuermannThalayasingam2009,
  author    = {Heuermann, Holger and Thalayasingam, K.},
  title     = {Novel vector non-linear measurement system for intermodulation measurements / Thalayasingam, K.; Heuermann, H.},
  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     = {926 -- 929},
  year      = {2009},
  language  = {en}
}
@article{RitzStender2006,
  author    = {Ritz, Thomas and Stender, Michael},
  title     = {Modeling of B2B mobile commerce processes},
  series = {International Journal of Production Economics},
  volume    = {101},
  journal   = {International Journal of Production Economics},
  number    = {1},
  issn      = {0925-5273},
  doi       = {10.1016/j.ijpe.2005.05.017},
  pages     = {128 -- 139},
  year      = {2006},
  language  = {en}
}
@article{WolfFoltzSchlicketal.1999,
  author    = {Wolf, Martin R. and Foltz, Christian and Schlick, Christopher and Luczak, Holger},
  title     = {Groupware support for chemical process design / Wolf, M.; Foltz, C.; Schlick, C.; Luczak, H.},
  series = {Human-computer interaction : proceedings of HCI International '99 (the 8th International Conference on Human-Computer Interaction), Munich, Germany, August 22 - 26, 1999},
  journal   = {Human-computer interaction : proceedings of HCI International '99 (the 8th International Conference on Human-Computer Interaction), Munich, Germany, August 22 - 26, 1999},
  publisher = {Erlbaum},
  address   = {Mahwah, NJ},
  pages     = {343 -- 347},
  year      = {1999},
  language  = {en}
}
@inproceedings{KoenigWolf2016,
  author    = {K{\"o}nig, Johannes Alexander and Wolf, Martin R.},
  title     = {The pyramid assessment framework for 'competence developing games'},
  series = {Communications in Computer and Information Science},
  volume    = {618},
  booktitle = {Communications in Computer and Information Science},
  editor    = {Stephanidis, C.},
  publisher = {Springer},
  isbn      = {978-331940541-4},
  issn      = {1865-0929},
  doi       = {10.1007/978-3-319-40542-1_37},
  pages     = {232 -- 237},
  year      = {2016},
  language  = {en}
}
@article{TurdumamatovBeldaHeuermann2024,
  author    = {Turdumamatov, Samat and Belda, Aljoscha and Heuermann, Holger},
  title     = {Shaping a decoupled atmospheric pressure microwave plasma with antenna structures, Maxwell's equations, and boundary conditions},
  series = {IEEE Transactions on Plasma Science},
  journal   = {IEEE Transactions on Plasma Science},
  number    = {Early Access},
  publisher = {IEEE},
  issn      = {0093-3813 (Print)},
  doi       = {10.1109/TPS.2024.3383589},
  pages     = {1 -- 9},
  year      = {2024},
  abstract  = {This article addresses the need for an innovative technique in plasma shaping, utilizing antenna structures, Maxwell's laws, and boundary conditions within a shielded environment. The motivation lies in exploring a novel approach to efficiently generate high-energy density plasma with potential applications across various fields. Implemented in an E01 circular cavity resonator, the proposed method involves the use of an impedance and field matching device with a coaxial connector and a specially optimized monopole antenna. This setup feeds a low-loss cavity resonator, resulting in a high-energy density air plasma with a surface temperature exceeding 3500 o C, achieved with a minimal power input of 80 W. The argon plasma, resembling the shape of a simple monopole antenna with modeled complex dielectric values, offers a more energy-efficient alternative compared to traditional, power-intensive plasma shaping methods. Simulations using a commercial electromagnetic (EM) solver validate the design's effectiveness, while experimental validation underscores the method's feasibility and practical implementation. Analyzing various parameters in an argon atmosphere, including hot S -parameters and plasma beam images, the results demonstrate the successful application of this technique, suggesting its potential in coating, furnace technology, fusion, and spectroscopy applications.},
  language  = {en}
}
@inproceedings{FerreinSchifferKallweit2018,
  author    = {Ferrein, Alexander and Schiffer, Stefan and Kallweit, Stephan},
  title     = {The ROSIN Education Concept - Fostering ROS Industrial-Related Robotics Education in Europe},
  series = {ROBOT 2017: Third Iberian Robotics Conference},
  booktitle = {ROBOT 2017: Third Iberian Robotics Conference},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-70836-2},
  doi       = {10.1007/978-3-319-70836-2_31},
  pages     = {370 -- 381},
  year      = {2018},
  language  = {en}
}
@article{Heuermann2008,
  author    = {Heuermann, Holger},
  title     = {A 14 W SPST Switch with Four PIN-Diodes In a 0402-SMD-Package},
  isbn      = {978-3-8007-3086-5},
  pages     = {318 -- 321},
  year      = {2008},
  language  = {en}
}
@inproceedings{AltherrConzenElsenetal.2023,
  author    = {Altherr, Lena and Conzen, Max and Elsen, Ingo and Frauenrath, Tobias and Lyrmann, Andreas},
  title     = {Sensor retrofitting of existing buildings in an interdisciplinary teaching project at university level},
  series = {Tagungsband AALE 2023 : mit Automatisierung gegen den Klimawandel},
  booktitle = {Tagungsband AALE 2023 : mit Automatisierung gegen den Klimawandel},
  editor    = {Reiff-Stephan, J{\"o}rg and J{\"a}kel, Jens and Schwarz, Andr{\´e}},
  publisher = {le-tex publishing services GmbH},
  address   = {Leipzig},
  isbn      = {978-3-910103-01-6},
  doi       = {10.33968/2023.04},
  pages     = {31 -- 40},
  year      = {2023},
  abstract  = {Existing residential buildings have an average lifetime of 100 years. Many of these buildings will exist for at least another 50 years. To increase the efficiency of these buildings while keeping costs at reasonable rates, they can be retrofitted with sensors that deliver information to central control units for heating, ventilation and electricity. This retrofitting process should happen with minimal intervention into existing infrastructure and requires new approaches for sensor design and data transmission. At FH Aachen University of Applied Sciences, students of different disciplines work together to learn how to design, build, deploy and operate such sensors. The presented teaching project already created a low power design for a combined CO2, temperature and humidity measurement device that can be easily integrated into most home automation systems},
  language  = {en}
}
@article{HeuermannSchiek1992,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {The In-Fixture Calibration Procedure Line-Network-Network-LNN},
  series = {Conference proceedings : monday 6th to thursday 9th september 1993, Palacio de Congresos, Madrid, Spain ; [the international conference and exhibition designed for the Microwave Community]},
  journal   = {Conference proceedings : monday 6th to thursday 9th september 1993, Palacio de Congresos, Madrid, Spain ; [the international conference and exhibition designed for the Microwave Community]},
  publisher = {Reed Exhibition Companies},
  address   = {Tunbridge Wells},
  isbn      = {0-946821-23-2},
  pages     = {500 -- 505},
  year      = {1992},
  language  = {en}
}
@article{HeuermannSchiek1994,
  author    = {Heuermann, Holger and Schiek, B.},
  title     = {Robust Algorithms for Txx Network Analyzer Self-Calibration Procedures},
  series = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 43 (1994), H. 1},
  journal   = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 43 (1994), H. 1},
  isbn      = {0018-9456},
  pages     = {18 -- 23},
  year      = {1994},
  language  = {en}
}
@article{HeuermannIbrahim2009,
  author    = {Heuermann, Holger and Ibrahim, Irfan},
  title     = {Improvements in the flicker noise reduction technique for osillator designs / Ibrahim, Irfan ; 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     = {1215 -- 1218},
  year      = {2009},
  language  = {en}
}
@article{Heuermann2004,
  author    = {Heuermann, Holger},
  title     = {A Synthesis Technique for Mono- and Mixed-Mode Symmetrical Filter},
  series = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association . Vol. 1},
  journal   = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association . Vol. 1},
  publisher = {Horizon House Publ},
  address   = {London},
  isbn      = {1-580-53992-0},
  pages     = {309 -- 312},
  year      = {2004},
  language  = {en}
}
@article{SchifferFerreinLakemeyer2011,
  author    = {Schiffer, Stefan and Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {Reasoning with Qualitative Positional Information for Domestic Domains in the Situation Calculus},
  series = {Journal of Intelligent \& Robotic Systems},
  volume    = {63},
  journal   = {Journal of Intelligent \& Robotic Systems},
  number    = {2},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {0921-0296},
  pages     = {273 -- 300},
  year      = {2011},
  language  = {en}
}
@inproceedings{NiemuellerNeumannHenkeetal.2017,
  author    = {Niemueller, Tim and Neumann, Tobias and Henke, Christoph and Sch{\"o}nitz, Sebastian and Reuter, Sebastian and Ferrein, Alexander and Jeschke, Sabina and Lakemeyer, Gerhard},
  title     = {International Harting Open Source Award 2016: Fawkes for the RoboCup Logistics League},
  series = {RoboCup 2016: RoboCup 2016: Robot World Cup XX. RoboCup 2016},
  booktitle = {RoboCup 2016: RoboCup 2016: Robot World Cup XX. RoboCup 2016},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-68792-6},
  doi       = {10.1007/978-3-319-68792-6_53},
  pages     = {634 -- 642},
  year      = {2017},
  language  = {en}
}