@article{BooysenRiegerFerrein2011,
  author    = {Booysen, Tracy and Rieger, Michael and Ferrein, Alexander},
  title     = {Towards inexpensive robots for science \& technology teaching and education in Africa},
  publisher = {IEEE},
  address   = {New York},
  isbn      = {978-1-61284-992-8},
  pages     = {1 -- 6},
  year      = {2011},
  language  = {en}
}
@article{SchollPalmLehmannetal.1996,
  author    = {Scholl, Ingrid and Palm, Christoph and Lehmann, Thomas Martin and Spitzer, Klaus},
  title     = {Trennung von diffuser und spiegelnder Reflexion in Farbbildern des Larynx zur Untersuchung von Farb- und Formmerkmalen der Stimmlippen. Palm, Christoph; Scholl, Ingrid; Lehmann, Thomas Martin; Spitzer, Klaus},
  series = {Bildverarbeitung f{\"u}r die Medizin},
  journal   = {Bildverarbeitung f{\"u}r die Medizin},
  publisher = {Verlag der Augustinus-Buchhandlung},
  address   = {Aachen},
  isbn      = {3-86073-519-5},
  pages     = {229 -- 234},
  year      = {1996},
  language  = {de}
}
@article{HeuermannSadeghfamBoehm2005,
  author    = {Heuermann, Holger and Sadeghfam, Arash and Boehm, H.},
  title     = {Ultra Compact Multi-Mode Filter with Novel Rat-Race Inductor. Sadeghfam, Arash; Heuermann, Holger; Boehm, H.},
  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. 2},
  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. 2},
  publisher = {Horizon House Publ},
  address   = {London},
  isbn      = {2-9600551-0-1},
  pages     = {4 pp.},
  year      = {2005},
  language  = {en}
}
@article{SchubaBusboomHerwonoetal.2002,
  author    = {Schuba, Marko and Busboom, Axel and Herwono, Ian and Zavagli, Guido},
  title     = {Unambiguous Device Identification and Fast Connection Setup in Bluetooth / Busboom, Axel ; Herwono, Ian ; Schuba, Marko ; Zavagli, Guido},
  series = {European wireless 2002 : next generation wireless networks: technologies, protocols, services and applications ; technical sessions: 26 - 28 February 2002, tutorials: 25 February 2002, Centro Affari, Florence, Italy ; proceedings / sponsored by EUREL ... General chair: Luciano Lenzini},
  journal   = {European wireless 2002 : next generation wireless networks: technologies, protocols, services and applications ; technical sessions: 26 - 28 February 2002, tutorials: 25 February 2002, Centro Affari, Florence, Italy ; proceedings / sponsored by EUREL ... General chair: Luciano Lenzini},
  pages     = {1 -- 5},
  year      = {2002},
  language  = {en}
}
@article{EngelsWiendahlDoege1999,
  author    = {Engels, Elmar and Wiendahl, H.-P. and Doege, E.},
  title     = {Universelle hydraulische Try-Out Presse / Teilprojekt A6 / Wiendahl, H.-P. ; Doege, E. ; Engels, E.},
  series = {Tagungsband : 12. Oktober 1999, Leibnizhaus Hannover / Sonderforschungsbereich 384 Verf{\"u}gbarkeitssicherung Reaktionsschneller Produktionssysteme, Universit{\"a}t Hannover. Hrsg.: H.-P. Wiendahl ; M. R{\"o}hrig},
  journal   = {Tagungsband : 12. Oktober 1999, Leibnizhaus Hannover / Sonderforschungsbereich 384 Verf{\"u}gbarkeitssicherung Reaktionsschneller Produktionssysteme, Universit{\"a}t Hannover. Hrsg.: H.-P. Wiendahl ; M. R{\"o}hrig},
  address   = {Hannover},
  isbn      = {3-00-005495-2},
  pages     = {getr. Z{\"a}hlung : Ill., graph. Darst.},
  year      = {1999},
  language  = {de}
}
@article{FerreinJacobsLakemeyer2005,
  author    = {Ferrein, Alexander and Jacobs, Stefan and Lakemeyer, Gerhard},
  title     = {Unreal Golog Bots / Jacobs, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {IJCAI-05 Workshop on Reasoning, Representation, and Learning in Computer Games},
  journal   = {IJCAI-05 Workshop on Reasoning, Representation, and Learning in Computer Games},
  pages     = {31 -- 36},
  year      = {2005},
  language  = {en}
}
@article{KrauseKehle1993,
  author    = {Krause, Gregor and Kehle, Uwe},
  title     = {Unterst{\"u}tzung des Motorhochlaufs eines Pumpspeicherkraftwerks durch Mittel der Blindleistungskompensation / Uwe Kehle, Gregor Krause},
  series = {Ert{\"u}chtigung von Kraftwerken und Netzen, insbesondere in den neuen Bundesl{\"a}ndern. Energietechnische Gesellschaft <Deutschland> am 20. und 21. Oktober 1993 in Mannheim},
  journal   = {Ert{\"u}chtigung von Kraftwerken und Netzen, insbesondere in den neuen Bundesl{\"a}ndern. Energietechnische Gesellschaft <Deutschland> am 20. und 21. Oktober 1993 in Mannheim},
  publisher = {VDE-Verl.},
  address   = {Berlin [u.a.]},
  isbn      = {3-8007-1967-3},
  pages     = {287 -- 296},
  year      = {1993},
  language  = {de}
}
@article{HillgaertnerRinkleff2003,
  author    = {Hillg{\"a}rtner, Michael and Rinkleff, T},
  title     = {Untersuchung eines hybriden EMV-Simulationsverfahrens anhand eines virtuellen Komponententests},
  series = {Technisches Messen. 70 (2003), H. 3},
  journal   = {Technisches Messen. 70 (2003), H. 3},
  isbn      = {0340-837X},
  pages     = {133 -- 140},
  year      = {2003},
  language  = {de}
}
@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}
}
@article{RitzPisarczykSachtlebenetal.2014,
  author    = {Ritz, Thomas and Pisarczyk, Rafael and Sachtleben, Johanna and Leßenich, Nina},
  title     = {Usability Engineering maßgeschneidert : Modellbaukasten zur Entwicklung gebrauchstauglicher mobiler Software},
  series = {Wissenschaft trifft Praxis},
  volume    = {1},
  journal   = {Wissenschaft trifft Praxis},
  number    = {1},
  publisher = {Begleitforschung Mittelstand-Digital c/o WIK-Consult GmbH},
  address   = {Bad Honnef},
  issn      = {2198-8544 (Print)},
  pages     = {79 -- 88},
  year      = {2014},
  language  = {de}
}
@article{FerreinFritzLakemeyer2005,
  author    = {Ferrein, Alexander and Fritz, Christian and Lakemeyer, Gerhard},
  title     = {Using Golog for Deliberation and Team Coordination in Robotic Soccer / Ferrein, Alexander ; Fritz, Christian ; Lakemeyer, Gerhard},
  series = {K{\"u}nstliche Intelligenz : KI. 19 (2005), H. 1},
  journal   = {K{\"u}nstliche Intelligenz : KI. 19 (2005), H. 1},
  isbn      = {0933-1875},
  pages     = {24 -- 30},
  year      = {2005},
  language  = {en}
}
@article{Huening2012,
  author    = {H{\"u}ning, Felix},
  title     = {Using Trench PowerMOSFETs in Linear Mode},
  series = {Power Electronics Europe (2012)},
  journal   = {Power Electronics Europe (2012)},
  publisher = {DFA Media},
  address   = {Tonbridge},
  issn      = {1748-3530},
  pages     = {27 -- 29},
  year      = {2012},
  abstract  = {If we think about applications for modern Power MOSFETs using trench technology, running them in linear mode may not be top of the priority list. Yet there are multiple uses for Trench Power MOSFETs in linear mode. In fact, even turning the device on and off in switching applications is a form of linear operation. Also, these components can be run in linear mode to protect the device against voltage surges. This article will illustrate the factors that need to be considered for linear operation and show how Trench Power MOSFETs are suited to it.},
  language  = {en}
}
@article{HagemannIhrig1979,
  author    = {Hagemann, Hans-J{\"u}rgen and Ihrig, H.},
  title     = {Valence change and phase stability of 3d-doped BaTiO3 annealed in oxygen and hydrogen. Hagemann, H. J.; Ihrig, H.},
  series = {Physical Review B.. 20 (1979), H. 9},
  journal   = {Physical Review B.. 20 (1979), H. 9},
  isbn      = {1095-3795},
  pages     = {3871 -- 3878},
  year      = {1979},
  language  = {en}
}
@article{YazdanbakhshSolbachBitz2012,
  author    = {Yazdanbakhsh, Pedram and Solbach, Klaus and Bitz, Andreas},
  title     = {Variable power combiner for RF mode shimming in 7-T MR imaging},
  series = {IEEE Transaction on Biomedical Engineering},
  volume    = {59},
  journal   = {IEEE Transaction on Biomedical Engineering},
  number    = {9},
  publisher = {IEEE},
  address   = {New York},
  issn      = {1558-2531},
  doi       = {10.1109/TBME.2012.2205926},
  pages     = {2549 -- 2557},
  year      = {2012},
  abstract  = {This contribution discusses the utilization of RF power in an MRI system with RF mode shimming which enables the superposition of circularly polarized modes of a transmit RF coil array driven by a Butler matrix. Since the required power for the individual modes can vary widely, mode-shimming can result in a significant underutilization of the total available RF power. A variable power combiner (VPC) is proposed to improve the power utilization: it can be realized as a reconfiguration of the MRI transmit system by the inclusion of one additional matrix network which receives the power from all transmit amplifiers at its input ports and provides any desired (combined) power distribution at its output ports by controlling the phase and amplitude of the amplifiers' input signals. The power distribution at the output ports of the VPC is then fed into the "mode" ports of the coil array Butler matrix in order to superimpose the spatial modes at the highest achievable power utilization. The VPC configuration is compared to the standard configuration of the transmit chain of our MRI system with 8 transmit channels and 16 coils. In realistic scenarios, improved power utilization was achieved from 17\% to 60\% and from 14\% to 55\% for an elliptical phantom and a region of interest in the abdomen, respectively, and an increase of the power utilization of 1 dB for a region of interest in the upper leg. In general, it is found that the VPC allows significant improvement in power utilization when the shimming solution demands only a few modes to be energized, while the technique can yield loss in power utilization in cases with many modes required at high power level.},
  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{SchollSovakarNeuschaeferRubeetal.1996,
  author    = {Scholl, Ingrid and Sovakar, Abhijit and Neuschaefer-Rube, C. and Lehmann, Thomas Martin},
  title     = {Verfolgung und Analyse von Stimmlippenkonturen in stroboskopischen Videosequenzen. Sovakar, Abhijit; Scholl, Ingrid; Neuschaefer-Rube, C.; Lehmann, Thomas Martin; Spitzer, Klaus},
  series = {Bildverarbeitung f{\"u}r die Medizin},
  journal   = {Bildverarbeitung f{\"u}r die Medizin},
  publisher = {Verlag der Augustinus-Buchhandlung},
  address   = {Aachen},
  isbn      = {3-86073-519-5},
  pages     = {235 -- 240},
  year      = {1996},
  language  = {de}
}
@article{HeuermannGraf1996,
  author    = {Heuermann, Holger and Graf, W.},
  title     = {Vergleich mehrerer Naeherungsverfahren zur Berechnung des Wellenwiderstandes von Mikrostreifenleitungen mit experimentellen Ergebnissen},
  series = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 39. 1996 (1996)},
  journal   = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 39. 1996 (1996)},
  year      = {1996},
  language  = {de}
}
@article{Krause2001,
  author    = {Krause, Gregor},
  title     = {Verhandeln statt Energiesparen? {\"U}ber den Umgang mit Preisnachl{\"a}ssen im Energiebereich},
  series = {extrACT: Das Magazin der Fachhochschule Aachen (2001)},
  journal   = {extrACT: Das Magazin der Fachhochschule Aachen (2001)},
  pages     = {22 -- 23},
  year      = {2001},
  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{Alt2005,
  author    = {Alt, Helmut},
  title     = {Versorgungssicherheit und Windenergie : Tatsachen und Fakten statt Mythen und Mysterien},
  series = {EW : das Magazin f{\"u}r die Energie-Wirtschaft},
  volume    = {Bd. 104},
  journal   = {EW : das Magazin f{\"u}r die Energie-Wirtschaft},
  number    = {H. 25},
  issn      = {0013-5496},
  pages     = {42 -- 45},
  year      = {2005},
  language  = {de}
}