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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)
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)
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, 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, 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, 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.