@inproceedings{FredebeulKrein2008,
  author    = {Fredebeul-Krein, Markus},
  title     = {Time for revision: The regulation of Germany's next generation networks in the light of new economic and technological challenges on telecom markets : Presentation for the 18th Biennial conference of the International Telecommunications Society, June 24-27, 2008 Montreal, Canada},
  year      = {2008},
  abstract  = {On 1st January 1998, the German telecom market was fully liberalised. Since then genuine competition between market participants has developed, based on a comprehensive legal and regulatory framework that provides for safeguards against unfair competition and market power by Deutsche Telekom. Today, about 10 years after the liberalisation of the telecommunications sector a revision of this regulatory approach has become necessary because at least on three dimensions the situation is quite different from the one 10 years ago: First, with numerous established alternative operators in the market monopolies have been successfully challenged and competition introduced. Second, not only is Cable TV becoming in large parts of Germany a viable alternative for the provision of broadband services but also mobile services are becoming increasingly a substitute for fixed services. Last but not least there are important technological changes under way, requiring huge investments in infrastructure upgrades for next generation networks. In the light of these new developments the question is to which extent the current regulatory approach of severe ex-ante regulatory intervention is still appropriate. Is any part of the network of the former incumbent still a bottleneck? A more light handed regulatory approach might be the right response to this new situation. The paper is organised as follows: The first section will briefly examine the economic rationale for regulating network access. Based on the assumption that regulation is always necessary when bottlenecks exist regulatory principles for an efficient network access regime will be derived. The second section compares the situation of the German market in early 1998 with the one of today. Thereby three dimensions will be considered: the degree of competition, the potential for substitution and technological developments. The third section will define some requirements for the future regulation of telecom markets. Proposals will be elaborated how to ensure competitive telecom markets in the light of new economic and technological challenges.},
  subject      = {Telekommunikationsmarkt},
  language  = {en}
}
@inproceedings{FredebeulKrein2009,
  author    = {Fredebeul-Krein, Markus},
  title     = {Encouraging competition and investment into next generation access networks: The case of long term risk sharing contracts},
  year      = {2009},
  abstract  = {Working paper distributed at 2nd Annual Next Generation Telecommunications Conference 2009, 13th - 14th October 2009, Brussels 14 pages Abstract Governments all over Europe are in the process of adopting new broadband strategies. The objective is to create modern telecommunications networks based on powerful broadband infrastructures". In doing so, they aim for innovative and investment-friendly concepts. For instance, in a recently published consultation paper on the subject the German regulator BNetzA declared that it will take "greater account of … reducing risks, securing the investment and innovation power, providing planning certainty and transparency - in order to support and advance broadband rollout in Germany". It further states that when regulating wholesale rates it has to be ensured that "… adequate incentives for network rollout are provided on the one hand, while sustainable and fair competition is ensured on the other". Also an EC draft recommendation on regulated network access is about to set new standards for the regulation of next generation access networks. According to the recommendation the prices of new assets shall be based on costs plus a projectspecific risk premium to be included in the costs of capital for the investment risk incurred by the operator. This approach has been criticised from various sides. In particular it has been questioned whether such an approach is adequate to meet the objectives of encouraging both competition and investment into next generation access networks. Against this background, the concept of "long term risk sharing contracts" has been proposed recently as an approach which does not only incorporate the various additional risks involved in the deployment of NGA infrastructure, but has several other advantages. This paper will demonstrate that the concept allows for competition to evolve at both the retail and wholesale level on fair, objective, non-discriminatory and transparent terms and conditions. Moreover, it ensures the highest possible investment incentive in line with socially desirable outcome. The paper is organised as follows: The next section will briefly outline the importance of encouraging competition and investment in an NGA-environment. The third section will specify the design of long term risk sharing contracts in view of achieving these objectives. The fourth section will examine potential problems associated with the concept. In doing so a way of how to deal with them will be elaborated. The last section will look at arguments against long term risk sharing contracts. It will be shown that these arguments are not strong enough to build a case against introducing such contracts.},
  subject      = {Electronic Commerce},
  language  = {en}
}
@inproceedings{FredebeulKreinHaunert2008,
  author    = {Fredebeul-Krein, Markus and Haunert, Martina},
  title     = {Assessing the effectiveness of price cap regimes for the regulation of fixed telephony markets: has it been successful in achieving competition? : preliminary draft / by Markus Fredebeul-Krein and Martina Haunert. 19th European Regional ITS Conference of the International Telecommunications Society, September 17-19, 2008 Rome, Italy},
  year      = {2008},
  abstract  = {1. Introduction 2. Tariff regulation, rebalancing and price caps 3. Price cap regimes in selected European countries 4. Has price cap regulation been successful? 5. Regulatory implications for other countries},
  subject      = {Telekommunikationsmarkt},
  language  = {en}
}
@article{SchulteZurhausenPoznanska1994,
  author    = {Schulte-Zurhausen, Manfred and Poznanska, K.},
  title     = {Kryteria klasyfikacji malych i srednich przedsiebiorstw = Kriterien zur Klassifizierung von kleinen und mittleren Unternehmen},
  series = {Przeglad Organizacji (1994)},
  journal   = {Przeglad Organizacji (1994)},
  pages     = {24 -- 27},
  year      = {1994},
  language  = {en}
}
@article{FredebeulKrein1999,
  author    = {Fredebeul-Krein, Markus},
  title     = {The case for a more binding WTO agreement on regulatory principles in telecommunication markets},
  series = {Telecommunications policy. vol. 23 (1999), H. afl. 9},
  journal   = {Telecommunications policy. vol. 23 (1999), H. afl. 9},
  isbn      = {0308-5961},
  pages     = {625 -- 644},
  year      = {1999},
  language  = {en}
}
@article{FredebeulKrein1997,
  author    = {Fredebeul-Krein, Markus},
  title     = {Telecommunications and WTO discipline : an assessment of the WTO agreement on telecommunication services},
  series = {Telecommunications policy. 21 (1997), H. 6},
  journal   = {Telecommunications policy. 21 (1997), H. 6},
  isbn      = {0308-5961},
  pages     = {477 -- 491},
  year      = {1997},
  language  = {en}
}
@article{Grap2003,
  author    = {Grap, Rolf Dietmar},
  title     = {Determining manpower requirements in a spinning mill},
  series = {Chemical fibers international : CFI ; fiber polymers, fibers, texturing, and spunbonds (2003)},
  journal   = {Chemical fibers international : CFI ; fiber polymers, fibers, texturing, and spunbonds (2003)},
  isbn      = {0340-3343},
  pages     = {455 -- 458},
  year      = {2003},
  language  = {en}
}
@article{JacobsQuernheimAghadavoodiJolfaei1991,
  author    = {Jacobs, Stephan and Quernheim, Ulrich and Aghadavoodi Jolfaei, Masoud},
  title     = {Performance Evalutation of three Access Protocols for VSAT Networks / Ulrich Quernheim, Stephan Jacobs, Masoud Aghadavoodi Jolfaei},
  series = {Proceedings of the second European Conference on Satellite Communications : ECSC-2 ; Palais de Congr{\`e}s, Li{\`e}ge, Belgium, 22 - 24 October 1991 / [ed.: Brigitte Kaldeich]},
  journal   = {Proceedings of the second European Conference on Satellite Communications : ECSC-2 ; Palais de Congr{\`e}s, Li{\`e}ge, Belgium, 22 - 24 October 1991 / [ed.: Brigitte Kaldeich]},
  publisher = {ESA Publ. Div.},
  address   = {Noordwijk},
  isbn      = {92-9092-170-6},
  pages     = {XXXII, 533 S. : Ill., graph. Darst.},
  year      = {1991},
  language  = {en}
}
@article{JacobsQuernheim1990,
  author    = {Jacobs, Stephan and Quernheim, Ulrich},
  title     = {ARQ Error Control for Multipoint Satellite Communications / Ulrich Quernheim, Stephan Jacobs},
  series = {Computer networking : proceedings of the IFIP TC 6 Conference on Computer Networking, COMNET '90, Budapest, Hungary, 8-10 May, 1990 / edited by L{\´a}szl{\´o} Csaba, Tibor Szentiv{\´a}nyi, Katie Tarnay},
  journal   = {Computer networking : proceedings of the IFIP TC 6 Conference on Computer Networking, COMNET '90, Budapest, Hungary, 8-10 May, 1990 / edited by L{\´a}szl{\´o} Csaba, Tibor Szentiv{\´a}nyi, Katie Tarnay},
  publisher = {Elsevier},
  address   = {New York, N.Y.},
  isbn      = {0444888721},
  pages     = {xi, 505 p : ill},
  year      = {1990},
  language  = {en}
}
@article{JacobsQuernheim1990,
  author    = {Jacobs, Stephan and Quernheim, Ulrich},
  title     = {Multicopy ARQ Error Control Techniques for Multipoint Satellite Links / Ulrich Quernheim, Stephan Jacobs},
  series = {Proceedings of the IFIP TC 6 International Conference on Information Network and Data Communication : Lillehammer, Norway, 26 - 29 March, 1990 / ed. by Dipak Khakhar ...},
  journal   = {Proceedings of the IFIP TC 6 International Conference on Information Network and Data Communication : Lillehammer, Norway, 26 - 29 March, 1990 / ed. by Dipak Khakhar ...},
  publisher = {North-Holland},
  address   = {Amsterdam [u.a.]},
  isbn      = {0-444-88696-6},
  pages     = {XI, 411 S. : Ill., graph. Darst.},
  year      = {1990},
  language  = {en}
}
@article{JacobsQuernheim1990,
  author    = {Jacobs, Stephan and Quernheim, Ulrich},
  title     = {Error Control Techniques for Digital Satellite Links},
  series = {C-band antennas for regional communication systems : 1st European Conference Satellite Communications, ECSC-1, M{\"u}nchen, 28.-30.11.89 / Wolf, H. u.a. [Mitarb.]. Information und Dokumentation, Messerschmitt-B{\"o}lkow-Blohm GmbH (MBB), M{\"u}nchen},
  journal   = {C-band antennas for regional communication systems : 1st European Conference Satellite Communications, ECSC-1, M{\"u}nchen, 28.-30.11.89 / Wolf, H. u.a. [Mitarb.]. Information und Dokumentation, Messerschmitt-B{\"o}lkow-Blohm GmbH (MBB), M{\"u}nchen},
  publisher = {OTN-Berichtsstelle, Technisch-wissenschaftliche Information, Messerschmitt-B{\"o}lkow-Blohm GmbH},
  address   = {M{\"u}nchen},
  year      = {1990},
  language  = {en}
}
@article{Jacobs1993,
  author    = {Jacobs, Stephan},
  title     = {CSCW for Requirements Engineering - Requirements Engineering for CSCW},
  series = {Proceedings of the Third European Conference on Computer Supported Cooperative Work : 13 - 17 September 1993, Milan, Italy ; ECSCW ' 93 / ed. by Giorgio de Michelis ...},
  journal   = {Proceedings of the Third European Conference on Computer Supported Cooperative Work : 13 - 17 September 1993, Milan, Italy ; ECSCW ' 93 / ed. by Giorgio de Michelis ...},
  publisher = {Kluwer},
  address   = {Dordrecht [u.a.]},
  isbn      = {0-7923-2447-1},
  pages     = {XI, 364 S. : Ill., graph. Darst.},
  year      = {1993},
  language  = {en}
}
@article{JacobsHolten1995,
  author    = {Jacobs, Stephan and Holten, Roland},
  title     = {Goal Driven Business Modelling - Supporting Decision Making within Information System Development},
  series = {Conference on Organizational Computing Systems : August 13 - 16, 1995, Milpitas, Calif. / general ed. Nora Comstock ...},
  journal   = {Conference on Organizational Computing Systems : August 13 - 16, 1995, Milpitas, Calif. / general ed. Nora Comstock ...},
  publisher = {ACM},
  address   = {New York, NY},
  isbn      = {0-89791-706-5},
  pages     = {III, 353 S. : graph. Darst.},
  year      = {1995},
  language  = {en}
}
@article{JacobsHermanns1996,
  author    = {Jacobs, Stephan and Hermanns, Oliver},
  title     = {Cooperative Design: Requirements on Network Technology and Document Architecture},
  series = {Selected papers of the 6th Joint European Networking Conference / guest ed.: J. Barber{\´a}},
  journal   = {Selected papers of the 6th Joint European Networking Conference / guest ed.: J. Barber{\´a}},
  publisher = {Elsevier},
  address   = {Amsterdam [u.a.]},
  pages     = {S. 428 - 600 : Ill., graph. Darst.},
  year      = {1996},
  language  = {en}
}
@book{JacobsJarke1994,
  author    = {Jacobs, Stephan and Jarke, Matthias},
  title     = {Requirements information management : the NATURE approach / RWTH Aachen, Fachgruppe Informatik. M. Jarke},
  publisher = {RWTH, Fachgruppe Informatik},
  address   = {Aachen},
  pages     = {27 S : graph. Darst.},
  year      = {1994},
  language  = {en}
}
@article{JacobsJarkePohl1994,
  author    = {Jacobs, Stephan and Jarke, Matthias and Pohl, Klaus},
  title     = {Requirements Engineering 1993},
  series = {Automated software engineering : the international journal of automated reasoning and artificial intelligence in software engineering. Vol. 1 (1994), H. No. 1},
  journal   = {Automated software engineering : the international journal of automated reasoning and artificial intelligence in software engineering. Vol. 1 (1994), H. No. 1},
  isbn      = {0928-8910},
  year      = {1994},
  language  = {en}
}
@article{JacobsGrobKethers1994,
  author    = {Jacobs, Stephan and Grob, Robert and Kethers, Stefanie},
  title     = {Towards CIS in Quality Management - Integration of Agents and Methods / Robert Grob, Stephan Jacobs, Stefanie Kethers},
  series = {Proceedings of the Second International Conference on Cooperative Information Systems : May 17 - 20, 1994, Toronto, Canada / sponsored by the University of Toronto. Editors: Michael Brodie},
  journal   = {Proceedings of the Second International Conference on Cooperative Information Systems : May 17 - 20, 1994, Toronto, Canada / sponsored by the University of Toronto. Editors: Michael Brodie},
  publisher = {University of Toronto Press},
  address   = {Toronto},
  year      = {1994},
  language  = {en}
}
@article{Jacobs1994,
  author    = {Jacobs, Stephan},
  title     = {A Fault Diagnosis System Using Temporary Relations between Symptoms},
  series = {Operations research '93 : extended abstracts of the 18th Symposium on Operations Research held at the University of Cologne, September 1 - 3, 1993 / Achim Bachem ... (ed.)},
  journal   = {Operations research '93 : extended abstracts of the 18th Symposium on Operations Research held at the University of Cologne, September 1 - 3, 1993 / Achim Bachem ... (ed.)},
  publisher = {Physica-Verl.},
  address   = {Heidelberg},
  isbn      = {379080794X},
  pages     = {XXVI, 550 S : graph. Darst.},
  year      = {1994},
  language  = {en}
}
@article{JacobsJarkePohletal.1993,
  author    = {Jacobs, Stephan and Jarke, Matthias and Pohl, Klaus and Bubenko, Janis},
  title     = {Requirements Engineering : An Integrated View of Representations, Process, and Domain / Jarke, Matthias ; Pohl, Klaus ; Jacobs, Stephan ; Bubenko, Janis ...},
  series = {Software engineering : 4th European Software Engineering Conference Garmisch-Partenkirchen, Germany, September 13 - 17, 1993 ; proceedings / ESEC '93. Ian Sommerville ... (eds.)},
  journal   = {Software engineering : 4th European Software Engineering Conference Garmisch-Partenkirchen, Germany, September 13 - 17, 1993 ; proceedings / ESEC '93. Ian Sommerville ... (eds.)},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-57209-0},
  pages     = {100 -- 114},
  year      = {1993},
  language  = {en}
}
@article{Janz2002,
  author    = {Janz, Norbert},
  title     = {Outlier Robust Estimation of an Euler Equation Investment Model with German Firm Level Panel Data},
  series = {Contributions to modern econometrics : from data analysis to economic policy ; [dedicated to Gerd Hansen on the occasion of his 65th Birthday] / ed. by Ingo Klein and Stefan Mittnik},
  journal   = {Contributions to modern econometrics : from data analysis to economic policy ; [dedicated to Gerd Hansen on the occasion of his 65th Birthday] / ed. by Ingo Klein and Stefan Mittnik},
  publisher = {Kluwer Academic Publ.},
  address   = {Dordrecht [u.a.]},
  isbn      = {1402073348},
  pages     = {87 -- 103},
  year      = {2002},
  language  = {en}
}
@article{JanzEblingGottschalketal.2001,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {The Mannheim Innovation Panels (MIP and MIP-S) of the Centre for European Economic Research (ZEW) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann},
  series = {Schmollers Jahrbuch : Zeitschrift f{\"u}r Wirtschafts- und Sozialwissenschaften ; journal of applied social science studies. 121 (2001)},
  journal   = {Schmollers Jahrbuch : Zeitschrift f{\"u}r Wirtschafts- und Sozialwissenschaften ; journal of applied social science studies. 121 (2001)},
  isbn      = {0342-1783},
  pages     = {123 -- 129},
  year      = {2001},
  language  = {en}
}
@article{Jacobs1999,
  author    = {Jacobs, Stephan},
  title     = {The Teamwork Approach in Requirements Engineering},
  series = {The nature of requirements engineering / Matthias Jarke ... (Hrsg.)},
  journal   = {The nature of requirements engineering / Matthias Jarke ... (Hrsg.)},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {3-8265-6174-0},
  pages     = {XVIII, 410 S. : Ill., graph. Darst.},
  year      = {1999},
  language  = {en}
}
@article{Jacobs1999,
  author    = {Jacobs, Stephan},
  title     = {Introducing Measurable Requirements: A Case Study},
  series = {Proceedings : June 7 - 11, 1999, University of Limerick, Limerick, Ireland / sponsored by IEEE Computer Society Technical Council on Software Engineering. In cooperation with ACM SIGSOFT},
  journal   = {Proceedings : June 7 - 11, 1999, University of Limerick, Limerick, Ireland / sponsored by IEEE Computer Society Technical Council on Software Engineering. In cooperation with ACM SIGSOFT},
  isbn      = {0769501885},
  year      = {1999},
  language  = {en}
}
@article{GebhardtJarkeJacobs1997,
  author    = {Gebhardt, Michael and Jarke, Matthias and Jacobs, Stephan},
  title     = {A Toolkit for Negotiation Support Interfaces to Multidimensional Data},
  series = {SIGMOD 1997 : proceedings ACM SIGMOD International Conference on Management of Data, May 13 - 15, 1997, Tucson, Arizona, USA / ed. by Joan M. Peckman},
  journal   = {SIGMOD 1997 : proceedings ACM SIGMOD International Conference on Management of Data, May 13 - 15, 1997, Tucson, Arizona, USA / ed. by Joan M. Peckman},
  publisher = {ACM Press},
  address   = {New York, NY},
  isbn      = {0897919114},
  pages     = {XIV, 586 S : Ill., graph. Darst.},
  year      = {1997},
  language  = {en}
}
@article{JacobsGebhardt1996,
  author    = {Jacobs, Stephan and Gebhardt, Michael},
  title     = {Conflict Management in Design /},
  series = {Transactions from the Eighth Symposium on Quality Function Deployment : (concurrent with International Symposium on QFD 96] ; June 9 - 11, 1996, Novi, Michigan, USA / sponsored by: QFD Institute},
  journal   = {Transactions from the Eighth Symposium on Quality Function Deployment : (concurrent with International Symposium on QFD 96] ; June 9 - 11, 1996, Novi, Michigan, USA / sponsored by: QFD Institute},
  publisher = {QFD Institute},
  address   = {Ann Arbor, Mich.},
  pages     = {599 S.},
  year      = {1996},
  language  = {en}
}
@article{JacobsGebhardtKethersetal.1996,
  author    = {Jacobs, Stephan and Gebhardt, Michael and Kethers, Stefanie and Rzasa, Wojtek},
  title     = {Filling HTML forms simultaneously: CoWeb — architecture and functionality},
  series = {Computer Networks and ISDN Systems. Vol. 30 (1996), H. Issues 1-7},
  journal   = {Computer Networks and ISDN Systems. Vol. 30 (1996), H. Issues 1-7},
  isbn      = {0376-5075},
  pages     = {1385 -- 1395},
  year      = {1996},
  language  = {en}
}
@article{JanzLoeoefPeters2004,
  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?},
  series = {Problems and Perspectives in Management (2004)},
  journal   = {Problems and Perspectives in Management (2004)},
  isbn      = {ISSN 1727-7051},
  pages     = {184 -- 204},
  year      = {2004},
  language  = {en}
}
@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{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{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.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.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{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{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{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{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 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{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{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}
}
@article{Janz2002,
  author    = {Janz, Norbert},
  title     = {Innovative Power of German Manufacturing Industry Slows Down},
  series = {ZEW news. English edition. 4 (2002), H. 2002},
  journal   = {ZEW news. English edition. 4 (2002), H. 2002},
  pages     = {5 -- 5},
  year      = {2002},
  language  = {en}
}
@article{Janz2001,
  author    = {Janz, Norbert},
  title     = {Innovations in Germany: Market Novelties Gain Greater Importance},
  series = {ZEW news. English edition (2001)},
  journal   = {ZEW news. English edition (2001)},
  pages     = {3 -- 3},
  year      = {2001},
  language  = {en}
}
@article{PietschKurbel1986,
  author    = {Pietsch, Wolfram and Kurbel, Karl},
  title     = {A Portable Implementation of Index Sequential Input-Output [Part 1] / Kurbel, Karl; Pietsch, W.},
  series = {Ada letters. 6 (1986), H. 2},
  journal   = {Ada letters. 6 (1986), H. 2},
  isbn      = {0736-721X},
  pages     = {29 -- 40},
  year      = {1986},
  language  = {en}
}
@article{PietschKurbel1986,
  author    = {Pietsch, Wolfram and Kurbel, Karl},
  title     = {A Portable Implementation of Index Sequential Input-Output [Part 2] / Kurbel, Karl; Pietsch, W.},
  series = {Ada letters. 6 (1986), H. 3},
  journal   = {Ada letters. 6 (1986), H. 3},
  isbn      = {0736-721X},
  pages     = {6 -- 13},
  year      = {1986},
  language  = {en}
}
@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}
}