J. Hübner, J. Sichman, and O. Boissier. AAMAS'02: Proc. first Int'l joint Conf. on Autonomous
agents and multiagent systems, page 501--502. New York, NY, USA, ACM Press, (2002)
S. Iacob, K. Nieuwenhuis, N. Wijngaards, G. Pavlin, and B. Veelen. Intelligent Distributed Computing III, Proceedings of the 3rd International
Symposium on Intelligent Distributed Computing - IDC 2009, volume 237 of Studies in Computational Intelligence, page 237--242. Springer, (October 2009)