@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}
}
@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}
}