@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}
}
@misc{Ritz2014,
  author    = {Ritz, Thomas},
  title     = {Multiplattformentwicklung f{\"u}r mobile Informationssysteme : eine strategische Perspektive},
  series = {Info-Veranstaltung Multiplattform-Entwicklung f{\"u}r mobile Anwendungen, Dezember 2013},
  journal   = {Info-Veranstaltung Multiplattform-Entwicklung f{\"u}r mobile Anwendungen, Dezember 2013},
  organization    = {FH Aachen, University of Applied Sciences / m2clab},
  pages     = {1 Video (Laufzeit: 23:57 Min.)},
  year      = {2014},
  language  = {de}
}
@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}
}
@inproceedings{RitzStrauch2010,
  author    = {Ritz, Thomas and Strauch, Jakob},
  title     = {„Offline Strategie"-Patterns f{\"u}r mobile SOA Prozesse},
  series = {Mobile und ubiquit{\"a}re Informationssysteme : Technologien, Anwendungen und Dienste zur Unterst{\"u}tzung von mobiler Kollaboration ; Proceedings zur 5. Konferenz Mobile und Ubiquit{\"a}re Informationssysteme (MMS 2010) ; 23. - 25. Februar 2010 in G{\"o}ttingen, Germany. - (GI-Edition : Proceedings ; 163)},
  booktitle = {Mobile und ubiquit{\"a}re Informationssysteme : Technologien, Anwendungen und Dienste zur Unterst{\"u}tzung von mobiler Kollaboration ; Proceedings zur 5. Konferenz Mobile und Ubiquit{\"a}re Informationssysteme (MMS 2010) ; 23. - 25. Februar 2010 in G{\"o}ttingen, Germany. - (GI-Edition : Proceedings ; 163)},
  editor    = {Bick, Markus},
  publisher = {Gesellschaft f{\"u}r Informatik},
  address   = {Bonn},
  isbn      = {978-3-88579-257-4},
  pages     = {174 -- 180},
  year      = {2010},
  language  = {de}
}
@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}
}
@phdthesis{Ritz2004,
  author    = {Ritz, Thomas},
  title     = {Die werkzeuggest{\"u}tzte Produktion von personalisierten Informationsdienstleistungen. - (IPA-IAO Forschung und Praxis ; 389)},
  publisher = {Jost-Jetter},
  address   = {Heimsheim},
  isbn      = {3-936947-23-6},
  pages     = {151 S. : Ill., graph. Darst.},
  year      = {2004},
  language  = {de}
}
@inproceedings{BischofEyKucketal.2015,
  author    = {Bischof, Michael and Ey, Ludger and Kuck, Alexander and Rahier, Michael and Ritz, Thomas},
  title     = {Nutzerzentrierte Gestaltung und Entwicklung eines kontextsensitiven HMI},
  series = {Mensch und Computer 2015 : Workshop},
  booktitle = {Mensch und Computer 2015 : Workshop},
  editor    = {Weisbecker, Anette},
  publisher = {De Gruyter Oldenbourg},
  address   = {Berlin},
  isbn      = {978-3-11-044333-2},
  pages     = {467 -- 474},
  year      = {2015},
  language  = {de}
}
@article{WolfSimonSchlick1997,
  author    = {Wolf, Martin R. and Simon, S. and Schlick, Christopher},
  title     = {Computergest{\"u}tzte Kooperation - Eine Seifenblase? / Wolf, M.; Simon, S.; Schlick, C.},
  series = {Rechnergest{\"u}tzte Kooperation in Verwaltungen und großen Unternehmen : Tagungsband zum Workshop der GI-Gachgruppe / Peter Mambrey ... ( Hrsg.)},
  journal   = {Rechnergest{\"u}tzte Kooperation in Verwaltungen und großen Unternehmen : Tagungsband zum Workshop der GI-Gachgruppe / Peter Mambrey ... ( Hrsg.)},
  publisher = {Univ., Fachbereich Mathematik u. Informatik},
  address   = {Essen},
  pages     = {220 -- 234},
  year      = {1997},
  language  = {de}
}