@book{Pfeiffer2003,
  author    = {Pfeiffer, Johann},
  title     = {3D-Freiformfl{\"a}chenmessung},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {2003},
  language  = {de}
}
@book{Pfeiffer1996,
  author    = {Pfeiffer, Johann},
  title     = {Automatisierung in der Handhabungs- und Montagetechnik},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {1996},
  language  = {de}
}
@article{Pfeiffer2002,
  author    = {Pfeiffer, Johann},
  title     = {Chancen im Maschinenbau},
  series = {Fachblatt : Journal der Fachhochschule Aachen . 2002 (2002), H. 1},
  journal   = {Fachblatt : Journal der Fachhochschule Aachen . 2002 (2002), H. 1},
  publisher = {-},
  pages     = {2},
  year      = {2002},
  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{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{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{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{KnepperPfeiffer1995,
  author    = {Knepper, Ludger and Pfeiffer, Johann},
  title     = {Diplom-Ingenieur/Diplom-Ingenieurin (Fachhochschule) Maschinenbau - Allgemeiner Maschinenbau},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {Loseblattausg.},
  year      = {1995},
  language  = {de}
}
@book{PfeifferKnepper1999,
  author    = {Pfeiffer, Johann and Knepper, Ludger},
  title     = {Diplom-Ingenieur/Diplom-Ingenieurin (Fachhochschule) Maschinenbau Energie- und W{\"a}rmetechnik},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {Losebl.-Ausg.},
  year      = {1999},
  language  = {de}
}
@book{KnepperPfeiffer1998,
  author    = {Knepper, Ludger and Pfeiffer, Johann},
  title     = {Diplom-Ingenieur/Diplom-Ingenieurin (Fachhochschule) Maschinenbau Konstruktionstechnik},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {Loseblattausg.},
  year      = {1998},
  language  = {de}
}
@book{Pfeiffer2004,
  author    = {Pfeiffer, Johann},
  title     = {Ein Beitrag zur systematischen Beschreibung der Parameter und deren Einfluss auf die Maßgenauigkeit und Oberfl{\"a}chenqualit{\"a}t bei der Erzeugung und Herstellung von Freiformgeometrien : das System CAD/CAM/CAQ - Generieren, Herstellen, Messen},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {2004},
  language  = {de}
}
@article{PfeifferGauchel1997,
  author    = {Pfeiffer, Johann and Gauchel, Joachim},
  title     = {Entwicklung und Simulation von Mechanismen zu Automatisierungszwecken / Joachim Gauchel ; Johann Pfeiffer},
  series = {CAE Techniques : [proceedings of the 3st International Scientific Colloquium, Rzesz{\´o}w University of Technology, Poland, September 24-27, 1997] / ed. by Kazimierz E. Oczoś},
  journal   = {CAE Techniques : [proceedings of the 3st International Scientific Colloquium, Rzesz{\´o}w University of Technology, Poland, September 24-27, 1997] / ed. by Kazimierz E. Oczoś},
  publisher = {Politechnika Rzeszowska},
  address   = {Rzesz{\´o}w},
  isbn      = {83-7199-004-9},
  pages     = {425 ff},
  year      = {1997},
  language  = {de}
}
@book{Pfeiffer2000,
  author    = {Pfeiffer, Johann},
  title     = {Genauigkeit und Qualit{\"a}t von Freiformfl{\"a}chen},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {2000},
  language  = {de}
}
@article{Pfeiffer2004,
  author    = {Pfeiffer, Johann},
  title     = {Genauigkeit und Qualit{\"a}t von Freiformfl{\"a}chen / Projektleiter: Joachim Gauchel},
  series = {Forschungsbericht 2004 / Hrsg.: Der Rektor der Fachhochschule Aachen},
  journal   = {Forschungsbericht 2004 / Hrsg.: Der Rektor der Fachhochschule Aachen},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  pages     = {180},
  year      = {2004},
  language  = {de}
}
@article{PfeifferGauchelLuecke1999,
  author    = {Pfeiffer, Johann and Gauchel, Joachim and L{\"u}cke, Mathias},
  title     = {Genauigkeitsbetrachtungen in der CIM-Prozesskette},
  series = {4th International Scientific Colloquium CAx Techniques : proceedings of the 4th international scientific colloquium, Fachhochschule Bielefeld, Germany, September 13 - 15, 1999 / [organized in co-operation between Fachhochschule Bielefeld and Rzesz{\´o}w University of Technology ]. Ed. by Heinrich Ostholt},
  journal   = {4th International Scientific Colloquium CAx Techniques : proceedings of the 4th international scientific colloquium, Fachhochschule Bielefeld, Germany, September 13 - 15, 1999 / [organized in co-operation between Fachhochschule Bielefeld and Rzesz{\´o}w University of Technology ]. Ed. by Heinrich Ostholt},
  publisher = {[Fachhochsch.]},
  address   = {[Bielefeld]},
  isbn      = {3-00-004379-9},
  pages     = {323 -- 332},
  year      = {1999},
  language  = {de}
}
@article{Pfeiffer2002,
  author    = {Pfeiffer, Johann},
  title     = {Gute Chancen im Maschinenbau},
  series = {Aachener Nachrichten / Aachener Zeitung : Sonderbeil. (2002)},
  journal   = {Aachener Nachrichten / Aachener Zeitung : Sonderbeil. (2002)},
  publisher = {-},
  year      = {2002},
  language  = {de}
}
@article{Pfeiffer2002,
  author    = {Pfeiffer, Johann},
  title     = {Gute Chancen im Maschinenbau},
  series = {Rheinische Post : Sonderbeil. (2002)},
  journal   = {Rheinische Post : Sonderbeil. (2002)},
  year      = {2002},
  language  = {de}
}
@book{Pfeiffer1997,
  author    = {Pfeiffer, Johann},
  title     = {HSP III Koordinatenmessger{\"a}t},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {1997},
  language  = {de}
}
@book{GauchelPfeiffer2003,
  author    = {Gauchel, Joachim and Pfeiffer, Johann},
  title     = {Kalibrierung Koordinatenmessger{\"a}t},
  address   = {FH Aachen},
  year      = {2003},
  language  = {de}
}
@book{PfeifferGauchel2004,
  author    = {Pfeiffer, Johann and Gauchel, Joachim},
  title     = {Kalibrierung Koordinatenmessger{\"a}t},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {2004},
  language  = {de}
}