TY - CHAP A1 - Fredebeul-Krein, Markus T1 - 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 N2 - 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. KW - Telekommunikationsmarkt KW - Telekommunikationsmarkt Y1 - 2008 ER - TY - CHAP A1 - Fredebeul-Krein, Markus T1 - Encouraging competition and investment into next generation access networks: The case of long term risk sharing contracts N2 - 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. KW - Electronic Commerce KW - Breitband Markt KW - Regulierung KW - Internet KW - Bundesnetzagentur KW - broadband market KW - regulation KW - Internet KW - next generation access networks KW - risk sharing Y1 - 2009 ER - TY - CHAP A1 - Fredebeul-Krein, Markus A1 - Haunert, Martina T1 - 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 N2 - 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 KW - Telekommunikationsmarkt KW - Telekommunikationsmarkt Y1 - 2008 ER - TY - JOUR A1 - Schulte-Zurhausen, Manfred A1 - Poznanska, K. T1 - Kryteria klasyfikacji malych i srednich przedsiebiorstw = Kriterien zur Klassifizierung von kleinen und mittleren Unternehmen JF - Przeglad Organizacji (1994) Y1 - 1994 SP - 24 EP - 27 ER - TY - JOUR A1 - Fredebeul-Krein, Markus T1 - The case for a more binding WTO agreement on regulatory principles in telecommunication markets JF - Telecommunications policy. vol. 23 (1999), H. afl. 9 Y1 - 1999 SN - 0308-5961 SP - 625 EP - 644 ER - TY - JOUR A1 - Fredebeul-Krein, Markus T1 - Telecommunications and WTO discipline : an assessment of the WTO agreement on telecommunication services JF - Telecommunications policy. 21 (1997), H. 6 Y1 - 1997 SN - 0308-5961 SP - 477 EP - 491 ER - TY - JOUR A1 - Grap, Rolf Dietmar T1 - Determining manpower requirements in a spinning mill JF - Chemical fibers international : CFI ; fiber polymers, fibers, texturing, and spunbonds (2003) Y1 - 2003 SN - 0340-3343 SP - 455 EP - 458 ER - TY - JOUR A1 - Jacobs, Stephan A1 - Quernheim, Ulrich A1 - Aghadavoodi Jolfaei, Masoud T1 - Performance Evalutation of three Access Protocols for VSAT Networks / Ulrich Quernheim, Stephan Jacobs, Masoud Aghadavoodi Jolfaei JF - Proceedings of the second European Conference on Satellite Communications : ECSC-2 ; Palais de Congrès, Liège, Belgium, 22 - 24 October 1991 / [ed.: Brigitte Kaldeich] Y1 - 1991 SN - 92-9092-170-6 N1 - European Conference on Satellite Communications <2, 1991, Liège>; ESA SP ; 332 PB - ESA Publ. Div. CY - Noordwijk ER - TY - JOUR A1 - Jacobs, Stephan A1 - Quernheim, Ulrich T1 - ARQ Error Control for Multipoint Satellite Communications / Ulrich Quernheim, Stephan Jacobs JF - Computer networking : proceedings of the IFIP TC 6 Conference on Computer Networking, COMNET '90, Budapest, Hungary, 8-10 May, 1990 / edited by László Csaba, Tibor Szentiványi, Katie Tarnay Y1 - 1990 SN - 0444888721 N1 - International Federation for Information Processing ; COMNET ; (1990, Budapest) PB - Elsevier CY - New York, N.Y. ER - TY - JOUR A1 - Jacobs, Stephan A1 - Quernheim, Ulrich T1 - Multicopy ARQ Error Control Techniques for Multipoint Satellite Links / Ulrich Quernheim, Stephan Jacobs JF - Proceedings of the IFIP TC 6 International Conference on Information Network and Data Communication : Lillehammer, Norway, 26 - 29 March, 1990 / ed. by Dipak Khakhar ... Y1 - 1990 SN - 0-444-88696-6 N1 - International Conference on Information Network and Data Communication <3, 1990, Lillehammer> PB - North-Holland CY - Amsterdam [u.a.] ER - TY - JOUR A1 - Jacobs, Stephan A1 - Quernheim, Ulrich T1 - Error Control Techniques for Digital Satellite Links JF - C-band antennas for regional communication systems : 1st European Conference Satellite Communications, ECSC-1, München, 28.-30.11.89 / Wolf, H. u.a. [Mitarb.]. Information und Dokumentation, Messerschmitt-Bölkow-Blohm GmbH (MBB), München Y1 - 1990 PB - OTN-Berichtsstelle, Technisch-wissenschaftliche Information, Messerschmitt-Bölkow-Blohm GmbH CY - München ER - TY - JOUR A1 - Jacobs, Stephan T1 - CSCW for Requirements Engineering - Requirements Engineering for CSCW JF - Proceedings of the Third European Conference on Computer Supported Cooperative Work : 13 - 17 September 1993, Milan, Italy ; ECSCW ' 93 / ed. by Giorgio de Michelis ... Y1 - 1993 SN - 0-7923-2447-1 N1 - ECSCW <3, 1993, Milano> ; [Workshop "CSCW Tools and Technologies: Definging Research Agendas] PB - Kluwer CY - Dordrecht [u.a.] ER - TY - JOUR A1 - Jacobs, Stephan A1 - Holten, Roland T1 - Goal Driven Business Modelling - Supporting Decision Making within Information System Development JF - Conference on Organizational Computing Systems : August 13 - 16, 1995, Milpitas, Calif. / general ed. Nora Comstock ... Y1 - 1995 SN - 0-89791-706-5 N1 - Conference on Organizational Computing Systems <1995, Milpitas, Calif.> PB - ACM CY - New York, NY ER - TY - JOUR A1 - Jacobs, Stephan A1 - Hermanns, Oliver T1 - Cooperative Design: Requirements on Network Technology and Document Architecture JF - Selected papers of the 6th Joint European Networking Conference / guest ed.: J. Barberá Y1 - 1996 N1 - Joint European Networking Conference <6, 1995, Tel Aviv>; Computer networks and ISDN systems ; 28,4 : special issue PB - Elsevier CY - Amsterdam [u.a.] ER - TY - BOOK A1 - Jacobs, Stephan A1 - Jarke, Matthias T1 - Requirements information management : the NATURE approach / RWTH Aachen, Fachgruppe Informatik. M. Jarke Y1 - 1994 N1 - Aachener Informatik-Berichte ; 94-24 PB - RWTH, Fachgruppe Informatik CY - Aachen ER - TY - JOUR A1 - Jacobs, Stephan A1 - Jarke, Matthias A1 - Pohl, Klaus T1 - Requirements Engineering 1993 JF - Automated software engineering : the international journal of automated reasoning and artificial intelligence in software engineering. Vol. 1 (1994), H. No. 1 Y1 - 1994 SN - 0928-8910 ER - TY - JOUR A1 - Jacobs, Stephan A1 - Grob, Robert A1 - Kethers, Stefanie T1 - Towards CIS in Quality Management - Integration of Agents and Methods / Robert Grob, Stephan Jacobs, Stefanie Kethers JF - 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 Y1 - 1994 N1 - International Conference on Cooperative Information Systems ; (2 : ; 1994.05.17-20 : ; Toronto) PB - University of Toronto Press CY - Toronto ER - TY - JOUR A1 - Jacobs, Stephan T1 - A Fault Diagnosis System Using Temporary Relations between Symptoms JF - 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.) Y1 - 1994 SN - 379080794X N1 - Symposium on Operations Research ; (18, 1993, Köln) PB - Physica-Verl. CY - Heidelberg ER - TY - JOUR A1 - Jacobs, Stephan A1 - Jarke, Matthias A1 - Pohl, Klaus A1 - Bubenko, Janis T1 - Requirements Engineering : An Integrated View of Representations, Process, and Domain / Jarke, Matthias ; Pohl, Klaus ; Jacobs, Stephan ; Bubenko, Janis ... JF - Software engineering : 4th European Software Engineering Conference Garmisch-Partenkirchen, Germany, September 13 - 17, 1993 ; proceedings / ESEC '93. Ian Sommerville ... (eds.) Y1 - 1993 SN - 3-540-57209-0 N1 - ESEC (4, 1993, Garmisch-Partenkirchen); Lecture notes in computer science ; 717 SP - 100 EP - 114 PB - Springer CY - Berlin [u.a.] ER - TY - JOUR A1 - Janz, Norbert T1 - Outlier Robust Estimation of an Euler Equation Investment Model with German Firm Level Panel Data JF - 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 Y1 - 2002 SN - 1402073348 N1 - Dynamic modeling in econometrics in economics and finance ; 4 SP - 87 EP - 103 PB - Kluwer Academic Publ. CY - Dordrecht [u.a.] ER - TY - JOUR A1 - Janz, Norbert A1 - Ebling, Günther A1 - Gottschalk, Sandra A1 - Niggemann, Hiltrud T1 - 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 JF - Schmollers Jahrbuch : Zeitschrift für Wirtschafts- und Sozialwissenschaften ; journal of applied social science studies. 121 (2001) Y1 - 2001 SN - 0342-1783 SP - 123 EP - 129 ER - TY - JOUR A1 - Jacobs, Stephan T1 - The Teamwork Approach in Requirements Engineering JF - The nature of requirements engineering / Matthias Jarke ... (Hrsg.) Y1 - 1999 SN - 3-8265-6174-0 PB - Shaker CY - Aachen ER - TY - JOUR A1 - Jacobs, Stephan T1 - Introducing Measurable Requirements: A Case Study JF - 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 Y1 - 1999 SN - 0769501885 N1 - International Symposium on Requirements Engineering ; (4, 1999, Limerick) ER - TY - JOUR A1 - Gebhardt, Michael A1 - Jarke, Matthias A1 - Jacobs, Stephan T1 - A Toolkit for Negotiation Support Interfaces to Multidimensional Data JF - SIGMOD 1997 : proceedings ACM SIGMOD International Conference on Management of Data, May 13 - 15, 1997, Tucson, Arizona, USA / ed. by Joan M. Peckman Y1 - 1997 SN - 0897919114 N1 - International Conference on Management of Data ; (1997, Tucson, Ariz.) PB - ACM Press CY - New York, NY ER - TY - JOUR A1 - Jacobs, Stephan A1 - Gebhardt, Michael T1 - Conflict Management in Design / JF - 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 Y1 - 1996 N1 - Symposium on Quality Function Deployment ; (8, 1996, Novi, Mich.) PB - QFD Institute CY - Ann Arbor, Mich. ER - TY - JOUR A1 - Jacobs, Stephan A1 - Gebhardt, Michael A1 - Kethers, Stefanie A1 - Rzasa, Wojtek T1 - Filling HTML forms simultaneously: CoWeb — architecture and functionality JF - Computer Networks and ISDN Systems. Vol. 30 (1996), H. Issues 1-7 Y1 - 1996 SN - 0376-5075 SP - 1385 EP - 1395 ER - TY - JOUR A1 - Janz, Norbert A1 - Lööf, Hans A1 - Peters, Bettina T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries? JF - Problems and Perspectives in Management (2004) Y1 - 2004 SN - ISSN 1727-7051 N1 - online download: http://businessperspectives.org/files/ppm/PPM_EN_2004_02_Janz.pdf SP - 184 EP - 204 ER - TY - BOOK A1 - Janz, Norbert A1 - Lööf, Hans A1 - Peters, Bettina T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries? Y1 - 2003 SN - ISSN 1727-7051 N1 - ZEW Diskussion Paper. No 03-26 Online : ftp://ftp.zew.de/pub/zew-docs/dp/dp0326.pdf PB - Zentrum für Europäische Wirtschaftsforschung ZEW CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Gottschalk, Sandra A1 - Peters, Bettina T1 - 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 Y1 - 2002 PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Gottschalk, Sandra A1 - Hempell, Thomas A1 - Peters, Bettina T1 - 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 Y1 - 2002 PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Gottschalk, Sandra A1 - Niggemann, Hiltrud T1 - 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 Y1 - 2000 PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Gottschalk, Sandra A1 - Niggemann, Hiltrud T1 - Services in the Fu­ture: Innovation Activities in the Service Sector. Survey 1999 (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann Y1 - 2000 PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Gottschalk, Sandra A1 - Niggemann, Hiltrud T1 - 2nd Community Innovation Survey. Final Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann Y1 - 1999 PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Göggerle, J. A1 - Licht, Georg T1 - The Longitudinal Aspect of Innovation Surveys / G. Ebling, J. Göggerle, N. Janz, G. Licht und H. Stahl Y1 - 1998 PB - ZEW Zentrum für Europäische Wirtschaftsförderung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Gottschalk, Sandra T1 - Innovation Dynamics and Endogenours Market Structue. An Econometric Investigation with Aggregated Innovation Survey Data / Gottschalk, S. und N. Janz Y1 - 2001 N1 - ZEW-Discussion Paper 01-39 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp0139.pdf PB - ZEW Zentrum für Europäische Wirtschaftsförderung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther T1 - Export and Innovation Activities in the German Service Sector. Empirical Evidence at the Firm Level / Ebling, G.. und N. Janz Y1 - 1999 N1 - ZEW-Discussion Paper 99-53 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp5399.pdf PB - ZEW Zentrum für Europäische Wirtschaftsförderung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert T1 - Interpreting Estimation Result of Euler Equation Investment Models when Factor Markets are Imperfectly Competitive Y1 - 1997 N1 - ZEW-Discussion Paper 97-29 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp2997.pdf PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Licht, Georg T1 - Innovation Activities and European Patenting of German Firms. A Panel Data Analysis / Janz, N., G. Licht Y1 - 2002 ER - TY - BOOK A1 - Janz, Norbert A1 - Peters, Bettina T1 - Innovation and Innovation Success in the German Manufacturing Sector. Econometric Evidence at Firm Level / Janz, N. and Peters, B. Y1 - 2002 ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Gottschalk, Sandra A1 - Niggemann, Hiltrud T1 - 2nd Community Innovation Survey. 2nd Interim Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann Y1 - 1999 PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Gottschalk, Sandra A1 - Licht, Georg T1 - 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 Y1 - 1999 PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Gottschalk, Sandra A1 - Licht, Georg T1 - 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 Y1 - 1999 PB - ZEW Zentrum für Europäische Wirtschaftsforschung CY - Mannheim ER - TY - BOOK A1 - Janz, Norbert A1 - Licht, Georg A1 - Ebling, Günther A1 - Niggemann, Hiltrud T1 - Innovation in the Service Sector. Selected Facts and Some Policy Conclusions / Licht, G., G. Ebling, N. Janz, H. Niggemann Y1 - 1999 PB - European Commission CY - Luxembourg ER - TY - BOOK A1 - Janz, Norbert A1 - Ebling, Günther A1 - Niggemann, Hiltrud A1 - Stahl, Harald T1 - 2nd Community Innovation Survey. 1st Interim Report. Report prepared for Eurostat / Ebling, G., N. Janz, H. Niggemann und H. Stahl Y1 - 1998 PB - ZEW Zentrum für Europäische Wirtschaftsförderung CY - Mannheim ER - TY - BOOK A1 - Gottschalk, Sandra A1 - Janz, Norbert A1 - Rennings, Klaus T1 - Characteristics and Performance of Eco-Innovative Firms in the German Service Sector Y1 - 1998 ER - TY - JOUR A1 - Janz, Norbert T1 - Innovative Power of German Manufacturing Industry Slows Down JF - ZEW news. English edition. 4 (2002), H. 2002 Y1 - 2002 SP - 5 EP - 5 ER - TY - JOUR A1 - Janz, Norbert T1 - Innovations in Germany: Market Novelties Gain Greater Importance JF - ZEW news. English edition (2001) Y1 - 2001 SP - 3 EP - 3 ER - TY - JOUR A1 - Pietsch, Wolfram A1 - Kurbel, Karl T1 - A Portable Implementation of Index Sequential Input-Output [Part 1] / Kurbel, Karl; Pietsch, W. JF - Ada letters. 6 (1986), H. 2 Y1 - 1986 SN - 0736-721X SP - 29 EP - 40 ER - TY - JOUR A1 - Pietsch, Wolfram A1 - Kurbel, Karl T1 - A Portable Implementation of Index Sequential Input-Output [Part 2] / Kurbel, Karl; Pietsch, W. JF - Ada letters. 6 (1986), H. 3 Y1 - 1986 SN - 0736-721X SP - 6 EP - 13 ER - TY - JOUR A1 - Pietsch, Wolfram A1 - Steinbauer, Dieter T1 - Business Process Reengineering JF - Wirtschaftsinformatik. 36 (1994), H. 5 Y1 - 1994 SN - 0937-6429 SP - 502 EP - 505 ER - TY - JOUR A1 - Pietsch, Wolfram A1 - Taudes, A. T1 - Groupware Support for Interorganizational Courseware-Development. A Case Study / Pietsch, W. , Taudes, A. JF - IM : die Fachzeitschrift für Information Management & Consulting (1994) Y1 - 1994 SN - 0930-5181, 1616-1017 SP - 12 EP - 18 ER - TY - JOUR A1 - Pietsch, Wolfram A1 - Kurbel, K. A1 - Labentz, M. T1 - Prototyping und Projektmanagement bei großen Entwicklungsteams / Kurbel, K., Labentz, M., Pietsch, W. JF - Information management : IM ; Praxis, Ausbildung u. Forschung d. Wirtschaftsinformatik. 2 (1987), H. 1 Y1 - 1987 SN - 0930-5181 SP - 6 EP - 15 ER - TY - JOUR A1 - Pietsch, Wolfram A1 - Herzwurm, G. T1 - QFD for Customer-Focused Requirements Engineering / Herzwurm, G., Pietsch, W. JF - 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 Y1 - 2003 SN - 0769519806 N1 - International Requirements Engineering Conference ; (11, 2003, Monterey, Calif.) SP - 330 EP - 338 PB - IEEE Computer Society CY - Los Alamitos, Calif. [u.a.] ER - TY - JOUR A1 - Pietsch, Wolfram T1 - Risk-based Deployment of Standard Software Rollout Processes - a pragmatic approach JF - QFD : transactions from the Eleventh Symposium on Quality Function Deployment, [June 12 - 18, 1999, Novi, Michigan] / QFD Institute Y1 - 1999 SN - 1889477117 N1 - Symposium on Quality Function Deployment ; (11, 1999, Novi, Mich.) Online unter: http://www.herzwurm.de/Publikationen/daten/lit/deployment.pdf SP - 349 EP - 359 PB - QFD Institute CY - Ann Arbor, Mich. ER - TY - BOOK A1 - Pietsch, Wolfram T1 - Software quality management III : [... held in Seville in April 1995] / [Third International Conference on Software Quality Management]. Ed.: M. Ross Y1 - 1995 SN - 1853123099 N1 - International Conference on Software Quality Management ; (3, 1995, Sevilla) PB - Computational Mechanics Publ. CY - Southampton [u.a.] ER - TY - JOUR A1 - Pietsch, Wolfram A1 - Kurbel, Karl A1 - Jung, R. T1 - Modeling Knowledge about Long-term IS-Integration and Integration-oriented Reengineering with KADS / Kurbel, K., Jung, R., Pietsch, W. JF - Distributed information systems in business / W. König ... (eds.) Y1 - 1996 SN - 3-540-61094-4 PB - Springer CY - Berlin [u.a.] ER - TY - JOUR A1 - Pietsch, Wolfram A1 - Kurbel, Karl T1 - A Cooperative Work Environment for Evolutionary Software Development / Kurbel, K., Pietsch, W. JF - Multi-user interfaces and applications : proceedings of the IFIP WG 8.4 Conference on Multi-User Interfaces and Applications, Heraklion, Crete, Greece, 24 - 26 September, 1990 / ed. by Simon Gibbs ... Y1 - 1990 SN - 0-444-88760-1 N1 - Conference on Multi-User Interfaces and Applications <1990, Hērakleion> SP - 115 EP - 127 PB - North-Holland Publ. CY - Amsterdam [u.a.] ER - TY - JOUR A1 - Pietschmann, Bernd P. A1 - Vahs, Dietmar T1 - Change Management - Wie Sie Ihr Unternehmen fit für die Zukunft machen. Teil 1: Erfolgsfaktoren von Veränderungsprozessen JF - News / ASU ; BJU : von Unternehmern für Unternehmer. Ausgabe Baden-Württemberg. 13 (1996), H. 5 Y1 - 1996 SP - 76 EP - 79 ER - TY - JOUR A1 - Pietschmann, Bernd P. A1 - Vahs, Dietmar T1 - Change Management - Wie Sie Ihr Unternehmen fit für die Zukunft machen. Teil 2: Prozeßmanagement - Von starren Strukturen zu flexiblen Prozessen JF - News / ASU ; BJU : von Unternehmern für Unternehmer. Ausgabe Baden-Württemberg. 13 (1996), H. 6 Y1 - 1996 SP - 84 EP - 86 ER - TY - JOUR A1 - Pietschmann, Bernd P. A1 - Ruhtz, Vanessa T1 - Knowledge Management JF - Personal : Zeitschrift für Human Resource Management. 53 (2001), H. 5 Y1 - 2001 SN - 0031-5605 SP - 242 EP - 249 ER - TY - JOUR A1 - Hoepner, Gert T1 - Info-Web-Generation JF - Dm-compact : academic news for marketeers / Deutscher Direktmarketing Verband e. V.. 2 (2004), H. 3-4 Y1 - 2004 SN - 1573-3181 N1 - engl. Text unter gleichem Titel im gleichen Heft: Seite 12-17 SP - 14 EP - 20 ER - TY - JOUR A1 - Weigand, Christoph T1 - Optimal Production Schedule for a K Products Single Machine Problem JF - Economic Quality Control. 9 (1994) Y1 - 1994 SN - 0940-5151 SP - 91 EP - 101 ER - TY - JOUR A1 - Weigand, Christoph A1 - Collani, E. v. A1 - Saniga, E.M. T1 - Economic Adjustment Design for -Control Charts. E.v.Collani, E.M. Saniga, Ch. Weigand JF - IIE Transactions / Institute of Industrial Engineers. 26 (1994), H. 6 Y1 - 1994 SN - 0569-5554 ER - TY - JOUR A1 - Weigand, Christoph T1 - A Solution to the Scheduling Problem Taking into Account Quality JF - Operations research '91 : extended abstracts of the 16th Symposium on Operations Research held at the University of Trier at September 9 - 11, 1991 / [GMÖOR]. Peter Gritzmann ... (eds.) Y1 - 1991 SN - 3790806080 N1 - Symposium on Operations Research ; (16, 1991, Trier) SP - 373 EP - 375 PB - Physica-Verl. CY - Heidelberg ER - TY - JOUR A1 - Weigand, Christoph T1 - Optimal Adjustment Policies JF - Proceedings of the First Umeå-Würzburg Conference in Statistics : Kronlund Conference Center and University of Umeå, September 10 - 14, 1990 / ed. by Kurt Brännäs Y1 - 1990 SN - 91-7174-564-5 N1 - Umeå-Würzburg Conference in Statistics <1, 1990> SP - 147 EP - 158 PB - Univ. of Umeå CY - Umeå ER - TY - JOUR A1 - Weigand, Christoph T1 - Technically Optimal Inspection Policy with Arithmetical Adaption JF - IMA Journal of Management Mathematics. 14 (2003), H. 4 Y1 - 2003 SN - 1471-678X N1 - weitere ISSN 1471-6798 (E) SP - 357 EP - 371 ER - TY - JOUR A1 - Weigand, Christoph T1 - Economically Optimal Inspection Policy with Geometrical Adaption JF - Journal of Applied Statistics. 30 (2003), H. 5 Y1 - 2003 SN - 0266-4763 N1 - weitere ISSN 1360-0532 (E) SP - 555 EP - 569 ER - TY - JOUR A1 - Weigand, Christoph T1 - Economically Optimal Inspection Policy with Arithmetical Adaption JF - Applied stochastic models and data analysis / [10th International Symposium on Applied Stochastic Models and Analysis, June 12-15 2001, Université Technologique de Compiègne] ; editors Gérard Govaert, Jacques Janssen, Nikolaos Limnios. Y1 - 2001 N1 - ASDMA 2001 SP - 1010 EP - 1015 PB - Université Technologique de Compiègne CY - Compiègne ER - TY - JOUR A1 - Weigand, Christoph T1 - Economically Optimal Adaptive Inspection Policies JF - Economic Quality Control. 15 (2000), H. 1/2 Y1 - 2000 SN - 0940-5151 N1 - Printausgabe vorhanden: 43 Z 711 SP - 55 EP - 77 ER - TY - JOUR A1 - Weigand, Christoph T1 - Economic Machine Adjustment in the Case of Product Screening .E.v.Collani, Ch. Weigand JF - Statistical Papers. 33 (1992) Y1 - 1992 SP - 171 EP - 184 ER - TY - JOUR A1 - Weigand, Christoph T1 - On the Effects of SPC on Production Time JF - Economic Quality Control. 8 (1993) Y1 - 1993 SN - 0940-5151 SP - 23 EP - 61 ER - TY - JOUR A1 - Weigand, Christoph T1 - A new Approach for Optimal Control of a Production process JF - Economic Quality Control. 7 (1992) Y1 - 1992 SN - 0940-5151 SP - 225 EP - 251 ER - TY - BOOK A1 - Mackenstein, Hans T1 - The European system of central banks in relation to the Deutsche Bundesbank : a comparative study of the two institutions and their political and social environment / by Hans Wilhelm Mackenstein Y1 - 1992 N1 - Birmingham, Univ., Diss., 1992 CY - Birmingham ER - TY - BOOK A1 - Mackenstein, Hans A1 - Marsch, Steve T1 - The international relations of the European Union / by Steve Marsh and Hans Mackenstein Y1 - 2005 SN - 0-582-47293-8 PB - Pearson Education CY - Harlow [u.a.] ER - TY - JOUR A1 - Mackenstein, Hans T1 - The role of Germany, Japan and the United States on the ECU-bond markets / Hans Wilhelm Mackenstein JF - De pecunia. 3 (1991), H. 1 Y1 - 1991 SN - 1015-6283 SP - 113 EP - 150 ER - TY - JOUR A1 - Mackenstein, Hans A1 - Jeffery, Charlie T1 - Financial equalization in the 1990s : on the road back to Karlsruhe / Hans Mackenstein and Charlie Jeffery JF - Recasting German federalism : the legacies of unification Y1 - 1999 SN - 1-85567-579-x SP - 155 EP - 176 PB - Pinter CY - London ER - TY - JOUR A1 - Stephan, Jürgen A1 - Güth, Werner T1 - Equilibrium Selection in the One Seller and Many Buyers Game / Güth, Werner, Stephan, Jürgen JF - Zeitschrift für Nationalökonomie. Journal of Economics. 44 (1984), H. 3 Y1 - 1984 SN - 1617-7134 SP - 267 EP - 281 ER - TY - JOUR A1 - Mackenstein, Hans T1 - Books Reviewed - European Democratization since 1800 edited by J. Garrard, V. Tolz and R. White JF - Democratization. 7 (2000), H. 4 Y1 - 2000 SN - 1351-0347 SP - 219 EP - 219 ER - TY - JOUR A1 - Mackenstein, Hans T1 - Book Reviews - Cowie, Harry, Private Partnership and Public Networks in Europe JF - Regional and federal studies. 9 (1999), H. 2 Y1 - 1999 SN - 1359-7566 SP - 111 EP - 111 ER - TY - JOUR A1 - Mackenstein, Hans T1 - Book Reviews - Samardzic, Slobodan and Thomas Fleiner, Federalismus und Minderheitenproblem in Multiethnischen Gemeinschaften JF - Regional and federal studies. 8 (1998), H. 3 Y1 - 1998 SN - 1359-7566 SP - 138 EP - 138 ER - TY - JOUR A1 - Mackenstein, Hans T1 - Book Reviews - Morass, Michael; Regionale Interessen auf dem Weg in die Europäische Union: Strukturelle Entwicklung und Perspektiven der Interessenvermittlung Österreichischer und deutscher Ländesakteure im Rahmen der Europäischen Integration JF - Regional and federal studies. 8 (1998), H. 1 Y1 - 1998 SN - 1359-7566 SP - 227 EP - 227 ER - TY - BOOK A1 - Maercker, Gisela T1 - Efficient estimation in AR models with ARCH errors Y1 - 1995 N1 - Bericht // Institute für Mathematik, Technische Universität Braunschweig ; 95,10 PB - Institute für Mathematik, Techn. Univ. CY - Braunschweig ER - TY - BOOK A1 - Maercker, Gisela T1 - Statistical inference in conditional heteroskedastic autoregressive models Y1 - 1997 SN - 3-8265-2486-1 N1 - Berichte aus der Mathematik ; Zugl.: Braunschweig, Techn. Univ., Diss., 1996 PB - Shaker CY - Aachen ER - TY - JOUR A1 - Fredebeul-Krein, Markus A1 - Vogel, Erika T1 - Underground Storage Facilities in the German natural gas market: A need for access regulation to ensure competition? JF - Zeitschrift für Energiewirtschaft. 30 (2006), H. 4 Y1 - 2006 SN - 0343-5377 SP - 257 EP - 270 ER - TY - JOUR A1 - Pietsch, Wolfram T1 - Customer-Oriented Specification and Evaluation of IT Service Level Agreements JF - Software process improvement : Elektronische Ressource : 12th European conference ; proceedings / EuroSPI 2005, Budapest, Hungary, November 9 - 11, 2005. Ita Richardson ... (ed.) Y1 - 2005 SN - 3-540-30286-7 N1 - Lecture notes in computer science ; 3792 ; EuroSPI <12, 2005, Budapest> SP - 83 EP - 94 PB - Springer CY - Berlin [u.a.] ER - TY - JOUR A1 - Fredebeul-Krein, Markus T1 - Adopting a coherent institutional framework for the Ukrainian telecom sector: Lessons to be learnt from European and German experience JF - Zerkalo Nedeli (2003) Y1 - 2003 N1 - (Ukrainian Journal) ER - TY - JOUR A1 - Fredebeul-Krein, Markus T1 - Regulating Prices of Unbundled Access to the Local Loop: A German Case Study JF - Telekomunikacja i techniki informacyjne (2002) Y1 - 2002 SN - 1640-1549 N1 - Telecommunications and Information Technologies SP - 10 EP - 18 ER - TY - JOUR A1 - Grap, Rolf Dietmar T1 - If you think, education is expensive, try incompetence JF - Beschaffung aktuell (2007) Y1 - 2007 SN - 0341-4507 N1 - freier Zugang nach Registrierung SP - 62 EP - 63 ER - TY - JOUR A1 - Janz, Norbert A1 - Goedhuys, Micheline A1 - Mohnen, Pierre T1 - What drives productivity in Tanzanian manufacturing firms: technology or business environment? / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre JF - The European Journal of Development Research. 20 (2008), H. 2 Y1 - 2008 SN - 1743-9728 SP - 199 EP - 218 ER - TY - JOUR A1 - Janz, Norbert A1 - Goedhuys, Micheline A1 - Mairesse, Jacques A1 - Mohnen, Pierre T1 - Micro-evidence on innovation and development (MEIDE): an introduction / Goedhuys, Micheline ; Janz, Norbert ; Mairesse, Jacques ; Mohnen, Pierre JF - The European Journal of Development Research. 20 (2008), H. 2 Y1 - 2008 SN - 1743-9728 SP - 167 EP - 171 ER - TY - BOOK A1 - Janz, Norbert A1 - Goedhuys, Micheline A1 - Mohnen, Pierre T1 - Knowledge-based productivity in "low-tech" industries : evidence from firms in developing countries / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre Y1 - 2008 N1 - Working paper series // United Nations University, UNU-MERIT ; 2008,007 PB - UNU-MERIT CY - Maastricht ER - TY - BOOK A1 - Janz, Norbert A1 - Goedhuys, Micheline A1 - Mohnen, Pierre T1 - What drives productivity in Tanzanian manufacturing firms: technology or institutions? / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre Y1 - 2006 N1 - Working paper series // United Nations University, UNU-MERIT ; 2006,037 PB - UnU-MERIT CY - Maastricht ER - TY - JOUR A1 - Pietsch, Wolfram T1 - IT Service Deployment JF - QFD : transactions from International Symposium on QFD 2007 - Williamsburg, the Nineteenth Symposium on Quality Function Deployment ; September 7 - 8, 2007, Williamsburg, VA ; [companion document to the Thirteenth International and Nineteenth North American Symposium on Quality Function Deployment (ISQFD'07)] / [organized and hosted by the QFD Institute] Y1 - 2007 SN - 1-889477-19-2 N1 - QFD 2007, 19th Symposium on Quality Function Deployment, Williamsburg, VA, US, Sep 7-8, 2007 SP - 203 EP - 212 PB - QFD Inst. CY - Ann Arbor, Mich. ER - TY - JOUR A1 - Weigand, Christoph T1 - Defining Precisions for Reliable Measurement and Estimation Procedures JF - Economic Quality Control. 24 (2009), H. 1 Y1 - 2009 SN - 0940-5151 SP - 5 EP - 33 PB - De Gruyter CY - Berlin ER - TY - JOUR A1 - Mischke, Winfried T1 - Kurzkommentierung der §§ 433, 436, 446 - 453, 474 - 479 BGB JF - LexisNexis : Elektronische Ressource / Recht (2009) Y1 - 2009 ER - TY - JOUR A1 - Mischke, Winfried T1 - Die Garantie im Kaufrecht JF - Betriebs-Berater. 50 (1995), H. 22 Y1 - 1995 SN - 0340-7918 SP - 1093 EP - 1096 ER - TY - JOUR A1 - Fredebeul-Krein, Markus A1 - Steingröver, Markus T1 - Next Generation Access Networks: Why is there a higher risk of investment and how to deal with it? JF - Wettbewerbsprobleme im Internet / Jörn Kruse ... (Hrsg.). Mit Beitr. von: Patrick F. E. Beschorner ... Y1 - 2009 SN - 978-3-8329-5024-8 N1 - Hamburger Forum Medienökonomie ; 9 SP - 83 EP - 102 PB - Nomos, Ed. Fischer CY - Baden-Baden ER - TY - BOOK A1 - Chwallek, Constanze A1 - Felden, Birgit T1 - RatingCheck : Wertschöpfungskette / Chwallek, Constanze ; Felden, Birgit Y1 - 2006 PB - Deutscher Sparkassen Verlag CY - Stuttgart ER - TY - JOUR A1 - Fredebeul-Krein, Markus A1 - Knoben, Werner T1 - Long term risk sharing contracts as an approach to establish public–private partnerships for investment into next generation access networks JF - Telecommunications Policy Y1 - 2010 SN - 0308-5961 VL - 34 IS - 9 SP - 528 EP - 539 ER - TY - CHAP A1 - Fredebeul-Krein, Markus A1 - Steingröver, Markus T1 - Wholesale Broadband Access to IPTV in an NGA environment : how to deal with it from a regulatory perspective? Y1 - 2012 N1 - Regional ITS Conference of the international Telecommunications Society , February 22-24, 2012 New Delhi, India SP - 1 EP - 16 ER -