S. Heymans, R. Korf, M. Erdmann, J. Pührer, and T. Eiter. Proc. of the 2010 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology, 1, page 248--255. (2010)
S. Heymans, T. Eiter, and G. Xiao. Proc. of 19th European Conference on Artificial Intelligence (ECAI), volume 215 of Frontiers in Artificial Intelligence and Applications, page 35--40. IOS Press, (2010)
J. Pührer, S. Heymans, and T. Eiter. Proc. of 7th Extended Semantic Web Conference (ESWC 2010), volume 6088 of Lecture Notes in Computer Science, page 183-197. Springer Berlin / Heidelberg, (2010)
C. Feier, and S. Heymans. Proceedings of 6th Annual European Semantic Web Conference (ESWC 2009), volume 5554 of Lecture Notes in Computer Science, page 338-352. Heraklion, Greece, Springer, (June 2009)
J. de Bruijn, and S. Heymans. Proceedings of the 10th International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR 2009), volume 5753 of Lecture Notes in Computer Science, page 101-114. Potsdam, Germany, Springer, (2009)
S. Heymans, C. Feier, and T. Eiter. Proceedings of the 3rd International Conference on Web Reasoning and Rule Systems (RR 2009), volume 5837 of Lecture Notes in Computer Science, page 55-70. Chantilly, USA, Springer, (October 2009)
S. Heymans, D. Nieuwenborgh, and D. Vermeir. Transactions on Computational Logic, 9 (4):
1-53(August 2008)ACM, 2008. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in Transactions on Computational Logic, VOL 9, ISS 4, (August 2008) http://doi.acm.org/10.1145/1380572.1380575.
S. Heymans, D. Nieuwenborgh, and D. Vermeir. Annals of Mathematics and Artificial Intelligence (Special Issue on Answer Set Programming), 47 (1-2):
103-137(June 2006)