@article{PietschKurbelJung1996,
  author    = {Pietsch, Wolfram and Kurbel, Karl and Jung, R.},
  title     = {Modeling Knowledge about Long-term IS-Integration and Integration-oriented Reengineering with KADS / Kurbel, K., Jung, R., Pietsch, W.},
  series = {Distributed information systems in business / W. K{\"o}nig ... (eds.)},
  journal   = {Distributed information systems in business / W. K{\"o}nig ... (eds.)},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-61094-4},
  pages     = {VI, 302 S. : graph. Darst.},
  year      = {1996},
  language  = {en}
}
@article{Pietsch1992,
  author    = {Pietsch, Wolfram},
  title     = {Planung und Steuerung CASE-gest{\"u}tzter Software-Projekte},
  series = {Projektmanagement-Forum '92 : Dokumentation ; [Tagungszentrum Rosengarten Mannheim, 14. - 16. Oktober 1992] / hrsg. von Dietmar Lange ... [Gesellschaft f{\"u}r Projektmanagement INTERNET Deutschland e.V.]},
  journal   = {Projektmanagement-Forum '92 : Dokumentation ; [Tagungszentrum Rosengarten Mannheim, 14. - 16. Oktober 1992] / hrsg. von Dietmar Lange ... [Gesellschaft f{\"u}r Projektmanagement INTERNET Deutschland e.V.]},
  publisher = {GPM},
  address   = {M{\"u}nchen},
  isbn      = {3924841128},
  pages     = {353 -- 363},
  year      = {1992},
  language  = {de}
}
@article{PietschRuppelSchneider1992,
  author    = {Pietsch, Wolfram and Ruppel, A. and Schneider, B.},
  title     = {Effizientes Lernen von ICD-Klassifikationen},
  series = {Parallele Datenverarbeitung mit dem Transputer / 3. Transputer-Anwender-Treffen TAT '91, Aachen, 17. - 18. September 1991. R. Grebe; M. Baumann (Hrsg.)},
  journal   = {Parallele Datenverarbeitung mit dem Transputer / 3. Transputer-Anwender-Treffen TAT '91, Aachen, 17. - 18. September 1991. R. Grebe; M. Baumann (Hrsg.)},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {354055386X},
  pages     = {X, 383 S : Ill., graph. Darst},
  year      = {1992},
  language  = {de}
}
@article{PietschTeubner1992,
  author    = {Pietsch, Wolfram and Teubner, A.},
  title     = {Konnektionistische Tourenplanung f{\"u}r die dezentrale Vertriebsaußendienststeuerung / Pietsch, W., Teubner, A.},
  series = {Operations research proceedings 1991 : papers of the 20. annual meeting / [Deutsche Gesellschaft f{\"u}r Operations Research], DGOR. Ed. by W. Gaul ...},
  journal   = {Operations research proceedings 1991 : papers of the 20. annual meeting / [Deutsche Gesellschaft f{\"u}r Operations Research], DGOR. Ed. by W. Gaul ...},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-55410-6},
  pages     = {346 -- 353},
  year      = {1992},
  language  = {de}
}
@article{PietschHerzwurm2003,
  author    = {Pietsch, Wolfram and Herzwurm, G.},
  title     = {QFD for Customer-Focused Requirements Engineering / Herzwurm, G., Pietsch, W.},
  series = {Proceedings : 8 - 12 September 2003, Monterey Bay, California, USA / sponsored by IEEE Computer Society Technical Council on Software Engineering (TCSE) ... In cooperation with ACM SigSOFT},
  journal   = {Proceedings : 8 - 12 September 2003, Monterey Bay, California, USA / sponsored by IEEE Computer Society Technical Council on Software Engineering (TCSE) ... In cooperation with ACM SigSOFT},
  publisher = {IEEE Computer Society},
  address   = {Los Alamitos, Calif. [u.a.]},
  isbn      = {0769519806},
  pages     = {330 -- 338},
  year      = {2003},
  language  = {en}
}
@article{Pietsch1999,
  author    = {Pietsch, Wolfram},
  title     = {Risk-based Deployment of Standard Software Rollout Processes - a pragmatic approach},
  series = {QFD : transactions from the Eleventh Symposium on Quality Function Deployment, [June 12 - 18, 1999, Novi, Michigan] / QFD Institute},
  journal   = {QFD : transactions from the Eleventh Symposium on Quality Function Deployment, [June 12 - 18, 1999, Novi, Michigan] / QFD Institute},
  publisher = {QFD Institute},
  address   = {Ann Arbor, Mich.},
  isbn      = {1889477117},
  pages     = {349 -- 359},
  year      = {1999},
  language  = {en}
}
@book{Pietsch1995,
  author    = {Pietsch, Wolfram},
  title     = {Software quality management III : [... held in Seville in April 1995] / [Third International Conference on Software Quality Management]. Ed.: M. Ross},
  publisher = {Computational Mechanics Publ.},
  address   = {Southampton [u.a.]},
  isbn      = {1853123099},
  year      = {1995},
  language  = {en}
}
@article{PietschKurbel1991,
  author    = {Pietsch, Wolfram and Kurbel, Karl},
  title     = {Eine Beurteilung konnektionistischer Modelle auf der Grundlage ausgew{\"a}hlter Anwendungsprobleme und Vorschl{\"a}ge zur Erweiterung / Kurbel, Karl; Pietsch, Wolfram},
  series = {Wirtschaftsinformatik. 33 (1991), H. 5},
  journal   = {Wirtschaftsinformatik. 33 (1991), H. 5},
  isbn      = {0937-6429},
  pages     = {355 -- 364},
  year      = {1991},
  language  = {de}
}
@article{PietschSchneider1993,
  author    = {Pietsch, Wolfram and Schneider, B.},
  title     = {Selbstlernende Klassifikationssysteme - Bedeutung, L{\"o}sungsansatz und Anwendungsarchitektur / Pietsch W., Schneider, B.},
  series = {Informatik, Forschung und Entwicklung. 8 (1993), H. 1},
  journal   = {Informatik, Forschung und Entwicklung. 8 (1993), H. 1},
  isbn      = {0178-3564},
  pages     = {10 -- 22},
  year      = {1993},
  language  = {de}
}
@article{PietschKurbel1989,
  author    = {Pietsch, Wolfram and Kurbel, Karl},
  title     = {Expertensystem-Projekte. Entwicklungsmethodik, Organisation und Management / Kurbel, K., Pietsch, W.},
  series = {Informatik-Spektrum. 12 (1989), H. 2},
  journal   = {Informatik-Spektrum. 12 (1989), H. 2},
  isbn      = {0170-6012},
  pages     = {133 -- 146},
  year      = {1989},
  language  = {de}
}
@book{Pietsch1992,
  author    = {Pietsch, Wolfram},
  title     = {Methodik des betrieblichen Software-Projektmanagements : Grundlagen, Begr{\"u}ndung und Konzeption eines evolution{\"a}ren Ansatzes},
  publisher = {de Gruyter},
  address   = {Berlin [u.a.]},
  isbn      = {3-11-013492-6},
  pages     = {Getr. Z{\"a}hlung : graph. Darst.},
  year      = {1992},
  language  = {de}
}
@article{PietschBolteKurbeletal.1990,
  author    = {Pietsch, Wolfram and Bolte, Christine and Kurbel, Karl and Moazzami, Mahmoud},
  title     = {Ein Schnappschuss der Expertensystemszene in der Bundesrepublik Deutschland / Bolte, Christine; Kurbel, Karl; Moazzami, Mahmoud; Pietsch, Wolfram},
  series = {Wirtschaftsinformatik. 32 (1990), H. 1},
  journal   = {Wirtschaftsinformatik. 32 (1990), H. 1},
  isbn      = {0937-6429},
  pages     = {79 -- 86},
  year      = {1990},
  language  = {de}
}
@article{PietschSteinbauer1994,
  author    = {Pietsch, Wolfram and Steinbauer, Dieter},
  title     = {Business Process Reengineering},
  series = {Wirtschaftsinformatik. 36 (1994), H. 5},
  journal   = {Wirtschaftsinformatik. 36 (1994), H. 5},
  isbn      = {0937-6429},
  pages     = {502 -- 505},
  year      = {1994},
  language  = {en}
}
@article{PietschDrueeke1993,
  author    = {Pietsch, Wolfram and Dr{\"u}eke, Sabine},
  title     = {Erfolgsfaktoren des CIM-Projektmanagements / Dr{\"u}eke, Sabine; Pietsch, Wolfram},
  series = {CIM-Management. 9 (1993), H. 6},
  journal   = {CIM-Management. 9 (1993), H. 6},
  isbn      = {0179-2679},
  pages     = {41 -- 46},
  year      = {1993},
  language  = {de}
}
@article{Pietsch1996,
  author    = {Pietsch, Wolfram},
  title     = {Konnektionistische Tourenplanung f{\"u}r die dezentrale Vertriebsaußendienststeuerung},
  series = {Neuronale Netze in der Betriebswirtschaft : Anwendung in Prognose, Klassifikation und Optimierung ; ein Reader / Hans Corsten ... (Hrsg.)},
  journal   = {Neuronale Netze in der Betriebswirtschaft : Anwendung in Prognose, Klassifikation und Optimierung ; ein Reader / Hans Corsten ... (Hrsg.)},
  publisher = {Gabler},
  address   = {Wiesbaden},
  isbn      = {3-409-12610-4},
  pages     = {225 -- 233},
  year      = {1996},
  language  = {de}
}
@book{Pietsch1996,
  author    = {Pietsch, Wolfram},
  title     = {Reengineering und Wirtschaftlichkeit},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-60603-3},
  pages     = {230 S.},
  year      = {1996},
  language  = {de}
}
@article{PietschEickerKurbeletal.1992,
  author    = {Pietsch, Wolfram and Eicker, Stefan and Kurbel, Karl and Rautenstrauch, Claus},
  title     = {Einbindung von Software-Altlasten durch integrationsorientiertes Reengineering / Eicker, Stefan; Kurbel, Karl; Pietsch, Wolfram; Rautenstrauch, Claus},
  series = {Wirtschaftsinformatik. 34 (1992), H. 2},
  journal   = {Wirtschaftsinformatik. 34 (1992), H. 2},
  isbn      = {0937-6429},
  pages     = {137 -- 145},
  year      = {1992},
  language  = {de}
}
@article{PietschTeubner1993,
  author    = {Pietsch, Wolfram and Teubner, A.},
  title     = {Computerunterst{\"u}tzung f{\"u}r die dezentrale Außendienstarbeit / Pietsch, W. , Teubner, A.},
  series = {IM : die Fachzeitschrift f{\"u}r Information Management \& Consulting (1993)},
  journal   = {IM : die Fachzeitschrift f{\"u}r Information Management \& Consulting (1993)},
  isbn      = {0930-5181, 1616-1017},
  pages     = {22 -- 29},
  year      = {1993},
  language  = {de}
}
@article{PietschKurbel1988,
  author    = {Pietsch, Wolfram and Kurbel, K.},
  title     = {Projektmanagement bei einer Expertensystementwicklung / Kurbel, K., Pietsch, W.},
  series = {Information management : IM ; Praxis, Ausbildung u. Forschung d. Wirtschaftsinformatik. 3 (1988), H. 1},
  journal   = {Information management : IM ; Praxis, Ausbildung u. Forschung d. Wirtschaftsinformatik. 3 (1988), H. 1},
  isbn      = {0930-5181},
  pages     = {6 -- 13},
  year      = {1988},
  language  = {de}
}
@article{PietschKurbelLabentz1987,
  author    = {Pietsch, Wolfram and Kurbel, K. and Labentz, M.},
  title     = {Prototyping und Projektmanagement bei großen Entwicklungsteams / Kurbel, K., Labentz, M., Pietsch, W.},
  series = {Information management : IM ; Praxis, Ausbildung u. Forschung d. Wirtschaftsinformatik. 2 (1987), H. 1},
  journal   = {Information management : IM ; Praxis, Ausbildung u. Forschung d. Wirtschaftsinformatik. 2 (1987), H. 1},
  isbn      = {0930-5181},
  pages     = {6 -- 15},
  year      = {1987},
  language  = {en}
}
@article{JanzGottschalk2004,
  author    = {Janz, Norbert and Gottschalk, Sandra},
  title     = {Innovationst{\"a}tigkeit deutscher Unternehmen. Messung, Bestimmungs- und Erfolgsfaktoren / Janz, N. und S. Gottschalk},
  series = {Economia (2004)},
  journal   = {Economia (2004)},
  pages     = {19 -- 29},
  year      = {2004},
  language  = {de}
}
@article{Pietsch2004,
  author    = {Pietsch, Wolfram},
  title     = {IT Service Level Agreements},
  series = {Das Wirtschaftsstudium : wisu ; Zeitschrift f{\"u}r Ausbildung, Examen, Berufseinstieg und Weiterbildung (2004)},
  journal   = {Das Wirtschaftsstudium : wisu ; Zeitschrift f{\"u}r Ausbildung, Examen, Berufseinstieg und Weiterbildung (2004)},
  isbn      = {0340-3084},
  pages     = {1366 -- 1369},
  year      = {2004},
  language  = {de}
}
@article{Pietsch1997,
  author    = {Pietsch, Wolfram},
  title     = {Kundenorientiertes Software-Prozeßmanagement},
  series = {IM : die Fachzeitschrift f{\"u}r Information Management \& Consulting. 12 (1997), H. 1},
  journal   = {IM : die Fachzeitschrift f{\"u}r Information Management \& Consulting. 12 (1997), H. 1},
  isbn      = {0930-5181, 1616-1017},
  pages     = {21 -- 26},
  year      = {1997},
  language  = {de}
}
@article{PietschTaudes1994,
  author    = {Pietsch, Wolfram and Taudes, A.},
  title     = {Groupware Support for Interorganizational Courseware-Development. A Case Study / Pietsch, W. , Taudes, A.},
  series = {IM : die Fachzeitschrift f{\"u}r Information Management \& Consulting (1994)},
  journal   = {IM : die Fachzeitschrift f{\"u}r Information Management \& Consulting (1994)},
  isbn      = {0930-5181, 1616-1017},
  pages     = {12 -- 18},
  year      = {1994},
  language  = {en}
}
@book{JanzBaehr1994,
  author    = {Janz, Norbert and B{\"a}hr, Ulrike},
  title     = {Tobin's Q und betriebliche Investitionen : eine empirische analyse alternativer Berechnungsverfahren auf Basis von Jahresabschlußdaten / von Ulrike B{\"a}hr und Norbert Janz},
  address   = {Kiel},
  pages     = {32 Bl.},
  year      = {1994},
  language  = {de}
}
@book{JanzLicht2002,
  author    = {Janz, Norbert and Licht, Georg},
  title     = {Innovation Activities and European Patenting of German Firms. A Panel Data Analysis / Janz, N., G. Licht},
  pages     = {mimeo},
  year      = {2002},
  language  = {en}
}
@book{JanzPeters2002,
  author    = {Janz, Norbert and Peters, Bettina},
  title     = {Innovation and Innovation Success in the German Manufacturing Sector. Econometric Evidence at Firm Level / Janz, N. and Peters, B.},
  pages     = {mimeo},
  year      = {2002},
  language  = {en}
}
@book{JanzGottschalk2001,
  author    = {Janz, Norbert and Gottschalk, Sandra},
  title     = {Innovation Dynamics and Endogenours Market Structue. An Econometric Investigation with Aggregated Innovation Survey Data / Gottschalk, S. und N. Janz},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsf{\"o}rderung},
  address   = {Mannheim},
  year      = {2001},
  language  = {en}
}
@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{Janz1997,
  author    = {Janz, Norbert},
  title     = {Interpreting Estimation Result of Euler Equation Investment Models when Factor Markets are Imperfectly Competitive},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  pages     = {11 S.},
  year      = {1997},
  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}
}
@book{JanzEblingGoeggerleetal.1998,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and G{\"o}ggerle, J. and Licht, Georg},
  title     = {The Longitudinal Aspect of Innovation Surveys / G. Ebling, J. G{\"o}ggerle, N. Janz, G. Licht und H. Stahl},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsf{\"o}rderung},
  address   = {Mannheim},
  year      = {1998},
  language  = {en}
}
@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{GottschalkJanzRennings1998,
  author    = {Gottschalk, Sandra and Janz, Norbert and Rennings, Klaus},
  title     = {Characteristics and Performance of Eco-Innovative Firms in the German Service Sector},
  pages     = {mimeo},
  year      = {1998},
  language  = {en}
}
@book{JanzBeiseEblingetal.1998,
  author    = {Janz, Norbert and Beise, Marian and Ebling, G{\"u}nther and Licht, Georg},
  title     = {Innovationsverhalten im Verarbeitenden Gewerbe. Erhebung 1997 / Janz, N., M. Beise, G. Ebling, G. Licht und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsf{\"o}rderung},
  address   = {Mannheim},
  year      = {1998},
  language  = {de}
}
@book{JanzBeiseEblingetal.1998,
  author    = {Janz, Norbert and Beise, Marian and Ebling, G{\"u}nther and Licht, Georg},
  title     = {Zukunftsperspektiven der deutschen Wirtschaft. Innovationsaktivit{\"a}ten im Verarbeitenden Gewerbe. Befragung 1997, Kurzfassung / Janz, N., M. Beise, G. Ebling, 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.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Licht, Georg},
  title     = {Zukunftsperspektiven der deutschen Wirtschaft: Innovationsaktivit{\"a}ten im Verarbeitenden Gewerbe. 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{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{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 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{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Licht, Georg},
  title     = {Prospects of the German Economy: Innovation Activities in the Manufacturing Sector. Survey 1998 (English translation) / 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  = {en}
}
@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Licht, Georg},
  title     = {Services in the Future. Innovation Activities in the Service Sector. Survey 1998 (English translation) / 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  = {en}
}
@book{JanzEblingGottschalketal.2000,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {Zukunftsperspektiven der deutschen Wirtschaft: Innovationsaktivit{\"a}ten im Verarbeitenden Gewerbe. 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{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 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.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{JanzEblingGottschalketal.2000,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {Prospects of the German Economy: Innovation Activities in the Manufacturing Sector. Sur­vey 1999 Report to the Federal Ministry of Education and Research (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {2000},
  language  = {en}
}
@book{JanzEblingGottschalketal.2000,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {Services in the Fu­ture: Innovation Activities in the Service Sector. Survey 1999 (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {2000},
  language  = {en}
}
@book{JanzEblingGottschalketal.2001,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Peters, Bettina},
  title     = {Innovationsverhalten der deutschen Wirtschaft: Indikatorenbericht zur Innovationserhebung 2001 / Janz, N., G. Ebling, S. Gottschalk, B. Peters und T. Schmidt},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  pages     = {16 S., graph. Darst.},
  year      = {2001},
  language  = {de}
}
@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}
}