J. de Bruijn, и S. Heymans. Proc. of Second International Conference on Rules and Rule Markup Languages for the Semantic Web (RuleML 2006), стр. 7-16. IEEE Computer Society, (2006)
D. Nieuwenborgh, S. Heymans, и D. Vermeir. Proc. of 22th International Conference on Logic Programming (ICLP 2006), том 4079 из Lecture Notes in Computer Science, стр. 226-241. Springer, (2006)
D. Nieuwenborgh, S. Heymans, и D. Vermeir. Proc. of 17th European Conference on Artificial Intelligence (ECAI 2006), том 141 из Frontiers in Artificial Intelligence and Applications, стр. 462-466. IOS Press, (2006)
D. Nieuwenborgh, M. Vos, S. Heymans, и D. Vermeir. Proc. of Seventh Workshop on Computational Logic in Multi-Agent Systems (CLIMA-VII), том 4371 из Lecture Notes in Artificial Intelligence, стр. 20-40. Springer, (2006)
M. Jarrar, и S. Heymans. Proc. of International Conference on Semantics of a Networked World (ICSNW 2006), Current Trends in Database Technology (EDBT 2006), том 4254 из Lecture Notes in Computer Science, стр. 517-534. Munich, Germany, Springer, (2006)
S. Heymans, D. Nieuwenborgh, и D. Vermeir. Proc. of Fourth International Symposium on Foundations of Information and Knowledge Systems (FoIKS 2006), том 3861 из Lecture Notes in Computer Science, стр. 179-200. Budapest, Hungary, Springer, (2006)