2007, Article in monograph or in proceedings (Proceedings of the 12th International Conference on Applications of Natural Language to Information Systems (NLDB`07), pp. 204-216)
2007, Article in monograph or in proceedings (Klusch, M.; Hindriks, K.V.; Papazoglou, M.P. (ed.), CIA 2007: Cooperative Information Agents XI, pp. 343-359)
2005, Article in monograph or in proceedings (Mathieu, P.; Beaufils, B.; Brandouy, O. (ed.), Artificial Economics, A Symposium in Agent-based Computational Methods in Finance, Game Theory and their Applications, AE2005, pp. 91-102)
2005, Article in monograph or in proceedings (Castelfranchi, C.; Barber, S.; Sabater, S. (ed.), Proceedings of the Trust in Agent Societies Workshop, pp. 78-90)
2005, Article in monograph or in proceedings (Verbeeck, K.; Tuyls, K.; Nowé, A. (ed.), Proceedings of the 17th Belgium-Netherlands Conference on Artificial Intelligence, BNAIC 2005, pp. 351-352)