2008, Part of book or chapter of book (Zemliansky, P.; St--Amant, K. (ed.), The Handbook of Research on Virtual Workplaces and the New Nature of Business Practices, pp. 53-69)
2007, Part of book or chapter of book (Meersman, R.; Tari, Z.; Herrero, P. (ed.), On the Move to Meaningful Internet Systems 2007: OTM 2007 Workshops, pp. 709-718)
2007, Part of book or chapter of book (Filipe, J. (ed.), Web Information Systems and Technologies : Third International Conference, WEBIST 2007, Barcelona, Spain, March 3-6, 2007, Revised Selected Papers, pp. 26-34)