@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{Janz2003,
  author    = {Janz, Norbert},
  title     = {Innovationsforschung heute : die Mannheimer Innovationspanels / Norbert Janz ; Georg Licht (Hrsg.)},
  publisher = {Nomos-Verl.-Ges.},
  address   = {Baden-Baden},
  isbn      = {3-7890-8361-5},
  pages     = {199 S. : graph. Darst.},
  year      = {2003},
  language  = {de}
}
@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}
}