Y. Gil, and V. Ratnakar. Proceedings of the 15th International Florida Artificial Intelligence Research Society Conference, page 413--418. Menlo Park, CA, AAAI Press, (2002)
P. Bonatti, and L. Sauro. Proceedings of the 3rd International Workshop on Applications of Logic Programming to the (Semantic) Web and Web Services (ALPSWS2008), Udine, Italy, volume 434 of CEUR Workshop Proceedings, Sun SITE Central Europe, (2009)
R. Arndt, R. Troncy, S. Staab, L. Hardman, and M. Vacura. The Semantic Web: 6th International Semantic Web Conference, 2nd Asian Semantic Web Conference, ISWC 2007 + ASWC 2007, Busan, Korea, (2008)
M. Romanelli, D. Sonntag, and N. Reithinger. Poster and Demo Proceedings of the 1st International Conference on Semantic and Digital Media Technologies (SAMT-2006), Athens, Greece, volume 233 of CEUR Workshop Proceedings, Sun SITE Central Europe, (2007)