@book{JanzEblingNiggemannetal.1998,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Niggemann, Hiltrud and Stahl, Harald},
  title     = {2nd Community Innovation Survey. 1st Interim Report. Report prepared for Eurostat / Ebling, G., N. Janz, H. Niggemann und H. Stahl},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsf{\"o}rderung},
  address   = {Mannheim},
  year      = {1998},
  language  = {en}
}
@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {2nd Community Innovation Survey. 2nd Interim Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {1999},
  language  = {en}
}
@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {2nd Community Innovation Survey. Final Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {1999},
  language  = {en}
}
@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Licht, Georg},
  title     = {Dienstleistungen in der Zukunft: Innovationsaktivit{\"a}ten im Dienstleistungssektor. Befragung 1998 / Janz, N., G. Ebling, S. Gottschalk, G. Licht und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {1999},
  language  = {de}
}
@book{JanzEblingHippetal.1998,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Hipp, C. and Licht, Georg},
  title     = {Dienstleistungen in der Zukunft : Innovationsaktivit{\"a}ten im Dienstleistungssektor ; Befragung 1997 ; Kurzfassung / Janz, N., G. Ebling, C. Hipp, G. Licht und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsf{\"o}rderung},
  address   = {Mannheim},
  year      = {1998},
  language  = {de}
}
@book{JanzEblingGottschalketal.2000,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {Dienstleistungen in der Zukunft: Innovationsaktivit{\"a}ten im Dienstleistungssektor. Ergebnisse der Erhebung 1999 / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {2000},
  language  = {de}
}
@book{JanzEbling1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther},
  title     = {Export and Innovation Activities in the German Service Sector. Empirical Evidence at the Firm Level / Ebling, G.. und N. Janz},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsf{\"o}rderung},
  address   = {Mannheim},
  year      = {1999},
  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{JanzLichtEblingetal.1999,
  author    = {Janz, Norbert and Licht, Georg and Ebling, G{\"u}nther and Niggemann, Hiltrud},
  title     = {Innovation in the Service Sector. Selected Facts and Some Policy Conclusions / Licht, G., G. Ebling, N. Janz, H. Niggemann},
  publisher = {European Commission},
  address   = {Luxembourg},
  year      = {1999},
  language  = {en}
}
@book{JanzEblingHippetal.1998,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Hipp, C. and Licht, Georg},
  title     = {Innovationsaktivit{\"a}ten im Dienstleistungssektor. Erhebung 1997 / Janz, N., G. Ebling, C. Hipp, G. Licht und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsf{\"o}rderung},
  address   = {Mannheim},
  year      = {1998},
  language  = {de}
}