@book{Knepper2003,
  author    = {Knepper, Ludger},
  title     = {Procurement Optimizer - Rechner- und internetgest{\"u}tztes Tool zur Optimierung der Materialbeschaffung in der Produktion},
  address   = {FH Aachen},
  year      = {2003},
  language  = {de}
}
@book{Knepper2000,
  author    = {Knepper, Ludger},
  title     = {Staplereinsatzkonzept Rohstofflagerplatz einer Papierfabrik},
  address   = {FH Aachen},
  year      = {2000},
  language  = {de}
}
@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{GrundmannBommesFricke2003,
  author    = {Grundmann, Reinhard and Bommes, Leonard and Fricke, J{\"u}rgen},
  title     = {Ventilatoren},
  publisher = {Vulkan-Verlag},
  address   = {Essen},
  isbn      = {3-8027-3200-6},
  year      = {2003},
  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{GrundmannSchoenholtz1999,
  author    = {Grundmann, Reinhard and Sch{\"o}nholtz, Friedrich},
  title     = {„Ventilatoren-Fibel" der Firma Babcock-BSH},
  publisher = {Promotor-Verlag},
  address   = {Karlsruhe},
  year      = {1999},
  language  = {de}
}
@book{FaboKeilKrohn1992,
  author    = {Fabo, Sabine and Keil, Susanne and Krohn, Matthias},
  title     = {Medienentwicklung und k{\"u}nstlerische Ausbildung : Modelle der Weiterqualifizierung f{\"u}r k{\"u}nstlerische und gestalterische Berufe und T{\"a}tigkeiten am Beispiel der Kunsthochschule f{\"u}r Medien K{\"o}ln},
  publisher = {Kunsthochschule f{\"u}r Medien},
  address   = {K{\"o}ln},
  pages     = {474 S.},
  year      = {1992},
  language  = {de}
}
@book{SchuermannHonnef1979,
  author    = {Sch{\"u}rmann, Wilhelm and Honnef, Klaus},
  title     = {Wilhelm Sch{\"u}rmann - Fotografien / Text: Klaus Honnef},
  publisher = {Rheinland-Verl.},
  address   = {K{\"o}ln},
  isbn      = {3-7927-0485-4},
  pages     = {XXIII, 81 S. : {\"u}berw. Ill.},
  year      = {1979},
  language  = {de}
}
@book{Schuermann1994,
  author    = {Sch{\"u}rmann, Wilhelm},
  title     = {Metropole : Themen zur Großstadt},
  address   = {Aachen},
  pages     = {170 Bl.},
  year      = {1994},
  language  = {de}
}