J. Angele, and M. Gesmann. Proceedings of the Second International Conference on Rules and Rule Markup Languages for the Semantic Web, Athens, GA, USA, page 58-66. (2006)
D. Anicic, and N. Stojanovic. Intelligent Event Processing, Papers from the 2009 AAAI Spring Symposium, SS-09-05, page 14--20. Menlo Park, CA, AAAI Press, (2009)
B. Grosof, I. Horrocks, R. Volz, and S. Decker. WWW '03: Proceedings of the 12th International World Wide Web Conference, Budapest, Hungary, page 48-57. (2003)