S. Heymans, and D. Vermeir. Proc. of Confederated International Conferences: CoopIS, DOA, and ODBASE 2002, volume 2519 of Lecture Notes in Computer Science, page 1033-1046. Springer, (2002)
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)
J. de Bruijn, and S. Heymans. Proceedings of the First International Conference on Web Reasoning and Rule Systems (RR 2007), volume 4524 of Lecture Notes in Computer Science, page 103-117. Springer, (2007)
C. Feier, and S. Heymans. Proceedings of the 3rd International Workshop on Applications of Logic Programming on the (Semantic) Web and Web Services (ALPSWS 2008), volume 434 of CEUR Workshop Proceedings, Udine, Italy, CEUR-WS.org, (2008)
D. Nieuwenborgh, S. Heymans, and D. Vermeir. Proc. of Seventh International Symposium on Practical Aspects of Declarative Languages (PADL 2005), volume 3350 of Lecture Notes in Computer Science, page 128-142. Springer, (2005)
D. Nieuwenborgh, S. Heymans, and D. Vermeir. Proc. of 17th European Conference on Artificial Intelligence (ECAI 2006), volume 141 of Frontiers in Artificial Intelligence and Applications, page 462-466. IOS Press, (2006)
V. Chaudhdri, N. Dinesh, S. Heymans, and M. Wessel. Proc. of 3rd International Workshop on Graph Structures for Knowledge Representation and Reasoning (GKR), Beijing, China, (August 2013)
J. Janssen, S. Heymans, D. Vermeir, and M. Cock. Proceedings of the 24th International Conference on Logic Programming (ICLP 2008), volume 5366 of Lecture Notes in Computer Science, page 362-376. Udine, Italy, Springer, (2008)
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)
V. Chaudhri, N. Dinesh, and S. Heymans. In Proc. of 8th International Conference on Formal Ontology in Information Systems (FOIS 2014), (September 2014)
D. Nieuwenborgh, S. Heymans, and D. Vermeir. Proc. of 22th International Conference on Logic Programming (ICLP 2006), volume 4079 of Lecture Notes in Computer Science, page 226-241. Springer, (2006)
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)
S. Heymans, D. Nieuwenborgh, and D. Vermeir. Proc. of Answer Set Programming: Advances in Theory and Implementation (ASP 2005), volume 142 of CEUR Workshop Proceedings, CEUR-WS.org, (2005)
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)
N. Yorke-Smith, S. Heymans, and V. Chaudhri. Proceedings of the 12th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2013), Saint-Paul, Minnesota, USA, (May 2013)