G. Vulcu, W. Derguech, and S. Bhiri. Business Process Management Workshops, volume 66 of Lecture Notes in Business Information Processing, Springer, Berlin, (2011)
L. Luca, B. Stephen, and D. Pierpaolo. Computational Collective Intelligence: Semantic Web, Social Networks and Multiagent Systems First International Conference, ICCCI 2009, Wroclaw, Poland, volume 5796 of Lecture Notes in Artificial Intelligence, Springer, Berlin, (2009)
D. Sonntag, and M. Möller. Proceedings of the Sixth International Conference on Intelligent Environments (IE 2010), Kuala Lumpur, Malaysia, page 84--89. Los Alamitos, CA, IEEE Computer Society CPS, (2010)