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E. Mugellini, O. Khaled, and M. Pettenati. Electronic Government - Workshop and Poster Proceedings of the Fourth International EGOV Conference 2005, August 22-26, 2005, Copenhagen, Denmark, volume 13 of Schriftenreihe Informatik, page 69--77. Universitätsverlag Rudolf Trauner, Linz, Austria, (2005)
S. Carrino, E. Mugellini, O. Khaled, and R. Ingold. HCI International 2011, 14th International Conference on Human-Computer Interaction, Hilton Orlando Bonnet Creek, Orlando, Florida, USA., (July 2011)
A. Boukottaya, C. Vanoirbeek, F. Paganelli, and O. Khaled. Conceptual Modelling 2004, First Asia-Pacific Conference on Conceptual Modelling (APCCM2004), Dunedin, New Zealand, January 18-22, 2004, volume 31 of CRPIT, page 81--90. Australian Computer Society, (2004)
D. Perroud, L. Angelini, E. Mugellini, and O. Abou Khaled. The First International Conference on Ambient Computing, Applications, Services and Technologies, page 1–6. Barcelona, Spain, (October 2011)
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E. Mugellini, O. Khaled, M. Pettenati, and P. Kuonen. 2005 IEEE International Conference on e-Technology, e-Commerce, and e-Services (EEE 2005), page 618--621. Hong Kong, China, IEEE Computer Society, (April 2005)
M. Sokhn, E. Mugellini, O. Khaled, and A. Serhrouchni. 9th International Conference on Wired/Wireless Internet Communications (WWIC 2011), Vilanova i la Geltru, Catalonia, Spain, (June 2011)