@book{JanzEblingGottschalketal.2001,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Hempell, Thomas},
  title     = {Innovationsverhalten der deutschen Wirtschaft: Indikatorenbericht zur Innovationserhebung 2000 / Janz, N., G. Ebling, S. Gottschalk, T. Hempell, B. Peters, G. Ebling und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  pages     = {12 S., graph. Darst},
  year      = {2001},
  language  = {de}
}
@book{JanzGottschalkHempelletal.2002,
  author    = {Janz, Norbert and Gottschalk, Sandra and Hempell, Thomas and Peters, Bettina},
  title     = {Innovation Activities in the German Economy. Report on Indicators from the Innovation Survey 2000 (English translation) / Janz, N., S. Gottschalk, T. Hempell, B. Peters, G. Ebling und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {2002},
  language  = {en}
}
@book{JanzEblingGottschalketal.2002,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Peters, Bettina},
  title     = {Innovation Activities in the German Economy: Report on indicators from the Innovation Survey 2001 (english translation) / Janz, N., G. Ebling, S. Gottschalk, B. Peters und T. Schmidt},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {2002},
  language  = {en}
}
@book{JanzRammerEblingetal.2003,
  author    = {Janz, Norbert and Rammer, Christian and Ebling, G{\"u}nther and Peters, Bettina},
  title     = {Innovationsverhalten der deutschen Wirtschaft: Indikatorenbericht zur Innovationserhebung 2002 / Rammer, C., G. Ebling, S. Gottschalk, N. Janz, B. Peters und T. Schmidt},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  pages     = {16 S., graph. Darst.},
  year      = {2003},
  language  = {de}
}
@book{JanzGottschalkRammeretal.2002,
  author    = {Janz, Norbert and Gottschalk, Sandra and Rammer, Christian and Peters, Bettina},
  title     = {Innovationsverhalten der deutschen Wirtschaft: Hintergrundbericht zur Innovationserhebung 2001 / Gottschalk, S., N. Janz, B. Peters, C. Rammer und T. Schmidt},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  isbn      = {1611-681X},
  pages     = {221 S., graph. Darst.},
  year      = {2002},
  language  = {de}
}
@book{Knepper1978,
  author    = {Knepper, Ludger},
  title     = {Einsatz undAuslegung von Hochlagersystemen fuer Container, dargestellt am Beispiel einer Seehafenumschlaganlage},
  address   = {Aachen},
  year      = {1978},
  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{HeinrichsWeckGillessen1977,
  author    = {Heinrichs, Horst and Weck, H. and Gillessen, R.},
  title     = {Abschlussbericht zum Zeichnungssystem Freedraft zur rechnerunterstuetzten Zeichnungserstellung},
  address   = {Aachen},
  year      = {1977},
  language  = {de}
}
@book{JanzLoeoefPeters2003,
  author    = {Janz, Norbert and L{\"o}{\"o}f, Hans and Peters, Bettina},
  title     = {Firm Level Innovation and Productivity, Is there a Common Story Across Countries?},
  publisher = {Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung ZEW},
  address   = {Mannheim},
  isbn      = {ISSN 1727-7051},
  pages     = {34},
  year      = {2003},
  language  = {en}
}
@book{HeinrichsWeckVonderhagen1981,
  author    = {Heinrichs, Horst and Weck, M. and Vonderhagen, H.},
  title     = {CAD-Programmbibliothek f{\"u}r Großrechneranlagen},
  address   = {Aachen},
  year      = {1981},
  language  = {de}
}