@book{PfeifferKnepper1995,
  author    = {Pfeiffer, Johann and Knepper, Ludger},
  title     = {Diplom-Ingenieur/Diplom-Ingenieurin ( Fachhochschule ) Maschinenbau - Allgemeiner Maschinenbau},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {Losebl.-Ausg.},
  year      = {1995},
  language  = {de}
}
@book{Baatz1981,
  author    = {Baatz, Udo},
  title     = {Diplom-Ingenieur / Diplom-Ingenieurin an Fachhochschulen: Fachrichtung Maschinenbau : Stand: Dezember 1980},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {31 S., Beil.},
  year      = {1981},
  language  = {de}
}
@book{KnepperPfeiffer1999,
  author    = {Knepper, Ludger and Pfeiffer, Johann},
  title     = {Diplom-Ingenieur / Diplom-Ingenieurin (Fachhochschule) Maschinenbau, Energie- und W{\"a}rmetechnik},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {Loseblattausg.},
  year      = {1999},
  language  = {de}
}
@book{PfeifferKnepper1998,
  author    = {Pfeiffer, Johann and Knepper, Ludger},
  title     = {Diplom Ingenieur/Diplom Ingenieurin (Fachhochschule) Maschinenbau Konstruktionstechnik},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {Losebl.-Ausg.},
  year      = {1998},
  language  = {de}
}
@book{GauchelDittrich1985,
  author    = {Gauchel, Joachim and Dittrich, G{\"u}nter},
  title     = {Die kinematische Analyse von mehrgliedrigen ebenen Kurbelgetrieben sowie die Synthese von sechgliedrigen Kurbelgetrieben zur Gliedlagenerf{\"u}llung : Bericht d. Inst. f{\"u}r Getriebetechnik u. Maschinendynamik d. Rhein.-Westf. Techn. Hochsch. Aaachen},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  pages     = {133 S. : graph. Darst., Tab.},
  year      = {1985},
  language  = {de}
}
@book{Pfeiffer1997,
  author    = {Pfeiffer, Johann},
  title     = {Design und Herstellen von Werkzeugen mit Freiformfl{\"a}chen},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {1997},
  language  = {de}
}
@book{Knepper1992,
  author    = {Knepper, Ludger},
  title     = {Das Rolltor : Bauwerk{\"o}ffnungs-Abschl{\"u}sse ; Aufbau, Konstruktion, Hinweise zur Berechnung / von Horst G{\"u}nter Steuff ; unter Mitarb. von Ludger Knepper ; Frieder Thiele},
  publisher = {Werner},
  address   = {D{\"u}sseldorf},
  isbn      = {3-8041-3165-4},
  pages     = {XI, 227 S. : zahlr. graph. Darst.},
  year      = {1992},
  language  = {de}
}
@book{Wollert2002,
  author    = {Wollert, J{\"o}rg},
  title     = {Das Bluetooth Handbuch: Technologie, Software, Einsatzfelder, Systementwicklung, Wettbewerb},
  publisher = {Franzis},
  address   = {M{\"u}nchen},
  isbn      = {3-7723-5323-1},
  pages     = {333 S.},
  year      = {2002},
  language  = {de}
}
@book{Klocke1992,
  author    = {Klocke, Martina},
  title     = {CIM, Bedeutung f{\"u}r die Weiterbildung in Klein- und Mittelbetrieben : [Bericht {\"u}ber den EUROTECNET-Workshop "CIM - Bedeutung f{\"u}r die Weiterbildung in Klein- und Mittelbetrieben" vom 16. bis 17. Oktober 1991 in Elmshorn (BR Deutschland)] / [Bericht erstattet von Martina Klocke]},
  publisher = {EUROTECNET},
  address   = {Br{\"u}ssel},
  pages     = {64 S.: Ill.},
  year      = {1992},
  language  = {de}
}
@book{Baatz1985,
  author    = {Baatz, Udo},
  title     = {CAD/CAM im Maschinenbau - wohin geht der Weg?},
  address   = {M{\"u}lheim a.d. Ruhr},
  year      = {1985},
  language  = {de}
}
@book{Baatz1993,
  author    = {Baatz, Udo},
  title     = {CAD/CAM - Compass Maschinenbau. Ein Leitfaden f{\"u}r die optimale Systemauswahl CAD/CNC/CAM/CAE/PPS},
  publisher = {CADIB},
  address   = {Aachen},
  pages     = {[getr. Z{\"a}hlung]},
  year      = {1993},
  language  = {de}
}
@book{HeinrichsWeckVonderhagen1981,
  author    = {Heinrichs, Horst and Weck, M. and Vonderhagen, H.},
  title     = {CAD-Programmbibliothek f{\"u}r Großrechneranlagen},
  address   = {Aachen},
  year      = {1981},
  language  = {de}
}
@book{FiedlerWollert1993,
  author    = {Fiedler, J{\"o}rg and Wollert, J{\"o}rg},
  title     = {C f{\"u}r die Automatisierungspraxis : Grundlagen, Algorithmen, Beispiele},
  publisher = {D{\"u}sseldorf},
  address   = {VDI-Verl.},
  isbn      = {3-18-401320-0},
  pages     = {VIII, 278 S.},
  year      = {1993},
  language  = {de}
}
@book{Baatz1971,
  author    = {Baatz, Udo},
  title     = {Bildschirmunterst{\"u}tztes Konstruieren : Funktionsfindung, Prinziperarbeitung, Gestaltung und Detaillierung mit Hilfe graphischer Datenverarbeitungsanlagen},
  address   = {Aachen},
  year      = {1971},
  language  = {de}
}
@book{Baatz1973,
  author    = {Baatz, Udo},
  title     = {Bildschirmunterst{\"u}tztes Konstruieren},
  publisher = {VDI-Verl.},
  address   = {Duesseldorf},
  isbn      = {3-18-403039-3},
  pages     = {XI, 137 S. : Ill, graph. Darst.},
  year      = {1973},
  language  = {de}
}
@book{GauchelDittrichBraune1979,
  author    = {Gauchel, Joachim and Dittrich, G{\"u}nter and Braune, Reinhard},
  title     = {Berechnung von Maschinenschwingungen mit einem programmierbaren Tischrechner},
  publisher = {Westdt. Verl.},
  address   = {Opladen},
  isbn      = {3-531-02822-7},
  pages     = {126 S. : Ill., graph. Darst.},
  year      = {1979},
  language  = {de}
}
@book{Pfeiffer1996,
  author    = {Pfeiffer, Johann},
  title     = {Automatisierung in der Handhabungs- und Montagetechnik},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {1996},
  language  = {de}
}
@book{WollertFiedler1998,
  author    = {Wollert, J{\"o}rg and Fiedler, J{\"o}rg},
  title     = {Automatisieren mit dem PC. - 2. Aufl.},
  edition   = {2. Aufl.},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-63271-9},
  pages     = {IX, 343 S.},
  year      = {1998},
  language  = {de}
}
@book{WollertFiedler1995,
  author    = {Wollert, J{\"o}rg and Fiedler, J{\"o}rg},
  title     = {Automatisieren mit dem PC : Hardware, Software, Realisierung},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-401318-9},
  pages     = {VIII, 293 S.},
  year      = {1995},
  language  = {de}
}
@book{Knepper2004,
  author    = {Knepper, Ludger},
  title     = {Auslegung und Konstruktion von Hallentorantrieben},
  address   = {FH Aachen},
  year      = {2004},
  language  = {de}
}