1. Abdat, N., Spruit, M., Bos, M.: Software as a service and the pricing strategy for vendors. AEBR Book Series, pp. 154–192 (2010)
2. Barbosa, O., Alves, C.: A systematic mapping study on software ecosystems. In: Proc of IWSECO (2011)
3. Barros, A.P., Dumas, M.: The rise of web service ecosystems. IT Professional 8(5), 31–37 (2006)
4. Burkard, C., Draisbach, T., Widjaja, T., Buxmann, P.: Software ecosystems: Vendor-sided characteristics of online marketplaces. In: Informatik (2011)
5. Hong, S., van den Goor, G., Brinkkemper, S.: A formal approach to the comparison of object-oriented analysis and design methodologies. In: Proc. of the 26th Hawaii Int’l Conf. on System Sciences, vol. 4, pp. 689–698. IEEE (1993)