@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}
}
@book{BenknerDavid1999,
  author    = {Benkner, Thorsten and David, Klaus},
  title     = {Digitale Mobilfunksysteme : Grundlagen und aktuelle Systeme. - 2., aktualis. u. erw. Aufl.},
  publisher = {Teubner},
  address   = {Stuttgart},
  isbn      = {3-519-16181-8},
  pages     = {XIII, 457 S.. : graph. Darst.},
  year      = {1999},
  language  = {en}
}
@book{Benkner1998,
  author    = {Benkner, Thorsten},
  title     = {Wireless ATM Access and Advanced Software Techniques for Mobile Network Architektures. Deliverable 1: Service requirements, state of the art and guidelines for the development for future radio and mobile networks.},
  year      = {1998},
  language  = {en}
}
@book{BenknerStepping2002,
  author    = {Benkner, Thorsten and Stepping, Christoph},
  title     = {UMTS - Universal Mobile Telecommunications System},
  publisher = {Schlembach},
  address   = {Weil der Stadt},
  isbn      = {3-935340-07-9},
  pages     = {XVI, 511 S. : graph. Darst.},
  year      = {2002},
  language  = {en}
}
@book{Siepmann1997,
  author    = {Siepmann, Thomas},
  title     = {Modeller for Value Systems},
  publisher = {Erasmus Universiteit Rotterdam},
  address   = {Rotterdam},
  year      = {1997},
  language  = {en}
}
@book{BenknerDavid2005,
  author    = {Benkner, Thorsten and David, Klaus},
  title     = {Digital Mobile Radio Systems (Nicht erschienen?)},
  publisher = {Wiley},
  isbn      = {0-471-97591-5},
  pages     = {500},
  year      = {2005},
  language  = {en}
}
@book{SammFaissnerHenrigsetal.1982,
  author    = {Samm, Doris and Faissner, H. and Henrigs, W. and Preussger, A.},
  title     = {Further evidence for the radiative decay of a light, penetrating particle / Faissner, H. ; Heinrigs, W. ; Preussger, A. ; Samm, D.},
  publisher = {Technische Hochschule},
  address   = {Aachen},
  pages     = {16},
  year      = {1982},
  language  = {en}
}
@book{Mayer2001,
  author    = {Mayer, Claudia},
  title     = {Art : from prehistoric art to modernism / [Text: Claudia Mayer-Iswandy]},
  publisher = {DuMont},
  address   = {K{\"o}ln},
  isbn      = {3-7701-7048-2},
  pages     = {[19] S. : zahlr. Ill. + Beil. (19 S.)},
  year      = {2001},
  language  = {en}
}
@book{FassbenderVoglerWedel1994,
  author    = {Faßbender, Heinz and Vogler, Heiko and Wedel, Andrea},
  title     = {Implementation of a deterministic partial E-unification algorithm for macro tree transducers},
  publisher = {Univ. Ulm, Fak. f{\"u}r Informatik},
  address   = {Ulm},
  pages     = {62 S.},
  year      = {1994},
  language  = {en}
}
@book{FassbenderVogler1992,
  author    = {Faßbender, Heinz and Vogler, Heiko},
  title     = {A universal unification algorithm based on unification driven leftmost outermost narrowing},
  publisher = {Univ. Ulm, Fak. f{\"u}r Informatik},
  address   = {Ulm},
  pages     = {47 S. : graph. Darst.},
  year      = {1992},
  language  = {en}
}