@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{SammHemme2004,
  author    = {Samm, Doris and Hemme, Heinrich},
  title     = {Physikalische Denksportaufgaben},
  publisher = {Klett},
  address   = {Stuttgart},
  isbn      = {3-12-772531-0},
  year      = {2004},
  language  = {de}
}
@book{Samm1989,
  author    = {Samm, Doris},
  title     = {Suche nach skalaren und pseudoskalaren Teilchen am Kernreaktor Merlin der KFA J{\"u}lich},
  pages     = {109 S. : graph. Darst.},
  year      = {1989},
  language  = {de}
}
@book{Siepmann1987,
  author    = {Siepmann, Thomas},
  title     = {Reibmomente in Zylinderrollenlagern f{\"u}r Planetenr{\"a}der},
  address   = {Bochum},
  isbn      = {3-89194-068-8},
  pages     = {279 S. : graph. Darst.},
  year      = {1987},
  language  = {de}
}
@book{Siepmann1997,
  author    = {Siepmann, Thomas},
  title     = {Modeller for Value Systems},
  publisher = {Erasmus Universiteit Rotterdam},
  address   = {Rotterdam},
  year      = {1997},
  language  = {en}
}
@book{Muehl2001,
  author    = {M{\"u}hl, Thomas},
  title     = {Einf{\"u}hrung in die elektrische Messtechnik: mit 8 Tabellen},
  publisher = {Teubner},
  address   = {Stuttgart [u.a.]},
  isbn      = {3-519-06388-3},
  pages     = {276 S. : graph. Darst.},
  year      = {2001},
  language  = {de}
}
@book{Krause1991,
  author    = {Krause, Gregor},
  title     = {Leitungsmechanismen und Raumladungsph{\"a}nomene in Polyolefinen bei Hochfeldbeanspruchung},
  publisher = {Verl. d. Augustinus-Buchh.},
  address   = {Aachen},
  isbn      = {3-925038-97-3},
  pages     = {137 S. : graph. Darst.},
  year      = {1991},
  language  = {de}
}
@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{Lepers2005,
  author    = {Lepers, Heinrich},
  title     = {SPS-Programmierung nach IEC 61131-3: mit Beispielen CoDeSys und STEP 7 ; [auf 3 CD-ROMs Installationssoftware f{\"u}r CoDeSys und STEP 7 mit CFC, alle Beispiele aus dem Buch f{\"u}r CoDeSys und STEP 7, alle L{\"o}sungen zu den {\"U}bungsprojekten f{\"u}r CoDeSys und STEP 7]},
  publisher = {Franzis},
  address   = {Poing},
  isbn      = {3-7723-5801-2},
  pages     = {350 S.; Ill., graph. Darst.},
  year      = {2005},
  language  = {de}
}
@book{Lepers1971,
  author    = {Lepers, Heinrich},
  title     = {Identifizierung von stochastisch gest{\"o}rten Regelstrecken mit aperiodischen Testsignalen},
  pages     = {115 S.},
  year      = {1971},
  language  = {de}
}