A. Afuah and C. Tucci, Internet Business Models and Strategies. Boston McGraw-Hill, 2003.
 P. Andries, K. Debackere, and B. Van Looy, Effective business model adaptation strategies for new technologybased ventures, in Proceedings 9th PREBEM Conference on Business Economics, Management and Organization Science, Amersfoort, The Netherlands, 2006.
 H. Bouwman, H. de Vos, & T. Haaker, Mobile Service inovation and Business Models , Heidelberg: Springer, 2008.
 H. Bouwman, B. Van den Hooff, L. v. d. Wijngaert, and J. v. Dijk, Information & Communication Technology in Organizations. London: Sage Publications Inc, 2005.
 R. A. Burgelman, A Process Model of Internal Corporate Venturing in the Diversified Major Firm, Administrative Science Quarterly, vol. 28, no. 2, pp. 223-244, 1983. [OpenAIRE]
 H. Chesbrough and R. S. Rosenbloom, The role of the business model in capturing value from innovation: evidence from Xerox Corporation's technology spin-off companies, Industrial and Corporate Change, vol. 11, no. 3, pp. 529-555, 2002. [OpenAIRE]
 T. Haaker, E. Faber, and H. Bouwman, Balancing customer and network value in business models for mobile services, International Journal of Mobile Communications, vol. 4, no. 6, pp. 645-661, 2006.
 J. Hedman and T. Kalling, The business model concept: theoretical underpinnings and empirical illustrations, European Journal of Information Sciences, vol. 12, no. 1, pp. 49-59, 2003.
 P. Idenburg, Oog voor de toekomst: Over marketing en consumenten in een veranderende samenleving. Haarlem: Scriptum, 2004.
 R. Larsson, Case survey methodology: Quantitative analysis of patterns across case studies, Academy of Management Review, vol. 39, no. 6, pp. 1515-1546, 1993.
 I. MacInnes, Dynamic business model framework for emerging technologies, International Journal of Services Technology and Management, vol. 6, no. 1, pp. 3-19, 2005. [OpenAIRE]
 H. Mason and T. Rohner, The Venture Imperative, A New Model for Corporate Innovation. Boston: Harvard Business Press, 2002.
 M. Morris, M. Schindehutte, and J. Allen, The entrepeneur's business model: toward a unified perspective, Journal of Business Research, vol. 58, no. 6, pp. 726-735, 2005.
 A. Osterwalder and Y. Pigneur, An e-Business Model Ontology for Modeling e-Business, in Proceedings 15th Bled Electronic Commerce Conference, Bled, Slovenia, 2002. [OpenAIRE]
 A. G. Pateli and G. M. Giaglis, A research framework for analyzing eBusiness models, European Journal of Information Sciences, vol. 13, no. 4, pp. 302-314, 2004.