Limbach, F., Wulf, J., Zarnekow, R. and Düser, M. (2012). Wettbewerb und Kooperation im Content Delivery Markt. Proceedings of Multikonferenz Wirtschaftsinformatik (MKWI 2012, Braunschweig)

Limbach, F., Wulf, J., Zarnekow, R. and Düser, M. (2012). BUSINESS MODEL COMPETITION IN THE CONTENT DELIVERY MARKET – AN INFRASTRUCTURE ANALYSIS. Proceedings of the 20th European Conference on Information Systems (ECIS 2012, Barcelona, Spain)

Schulz, N., Wulf, J., Nguyen, Q.-T. and Zarnekow, R. (2011). The New Role of Developers in the Mobile Ecosystem - An Apple and Google Case Study. Proc. of 15th International Conference on Intelligence in Next Generation Networks (ICIN 2011)

Wulf, J. (2011). Service Distribution in IP-Networks - A Business Model Analysis. Electronic Communications of the EASST, 1-13.

Wulf, J., Limbach, F., Zarnekow, R. and Düser, M. (2011). Economics of a Quality-of-Service interconnection market - A simulation-based analysis of a market scenario. ICIS 2011 PROCEEDINGS (Shanghai, Singapore)

Wulf, J. and Zarnekow, R. (2011). HOW DO ICT FIRMS REACT TO CONVERGENCE? AN ANALYSIS OF DIVERSIFICATION STRATEGIES. Proceedings of the 19th European Conference on Information Systems (ECIS)

Wulf, J. and Zarnekow, R. (2011). Branchenübergreifender Wettbewerb in der Telekommunikation - Eine empirische Analyse von Diversifikationsaktivitäten. Wirtschaftsinformatik, 277–286.

Wulf, J. and Zarnekow, R. (2011). Cross-sector competition in telecommunications - An empirical analysis of diversification activities. Business & Information Systems Engineering, 289-298.

Wulf, J., Zarnekow, R. and Düser, M. (2011). A methodology for analysing substitution effects between QoS and best effort based services - An exemplary application to the case of IP based TV. Proc. of 10th Conference of Telecommunication, Media and Internet Techno-Economics (CTTE2011)

Cater-Steel, A., Zarnekow, R. and Wulf, J. (2011). IT Servide Management in the Academic Curriculum - Comparing an Australian and German Experience. Proc. of 15th Pacific Asia Conference on Information Systems (PACIS 2011)

Limbach, F., Wulf, J., Zarnekow, R. and Düser, M. (2011). Kooperationstreiber in der Telekommunikationswirtschaft. 4th Workshop on Services, Platforms, Innovations and Research for new Infrastructures in Telecommunications (SPIRIT 2011) auf der INFORMATIK 2011 in Berlin

Limbach, F., Wulf, J., Zarnekow, R. and Düser, M. (2011). A typology of cooperation strategies in the telecommunication industry – An exploratory analysis and theoretical foundations. 22nd European Regional ITS Conference Budapest, 18-21 September

Limbach, F., Wulf, J., Zarnekow, R. and Düser, M. (2011). Revenue distribution in a quality-centric internet interconnection market. Proceedings of the 17th Americas Conference on Information Systems (AMCIS 2011, Detroit, USA)

Wulf, J., Gegner, J. and Zarnekow, R. (2010). Strategic Options for Next Generation Network-based Business Models. 3rd Workshop on Services, Platforms, Innovations and Research for new Infrastructures in Telecommunications (SPIRIT 2010) auf der INFORMATIK 2010

Wulf, J., Hau, T., Zarnekow, R. and Brenner, W. (2010). Carrier Activities in the CDN Market: an Exploratory Analysis and Strategic Implications. 14th International Conference on Intelligence in Next Generation Networks (ICIN) Berlin