K. Schmidt, R. Stühmer, and L. Stojanovic. Intelligent Event Processing, Papers from the 2009 AAAI Spring Symposium, SS-09-05, page 67--72. Menlo Park, CA, AAAI Press, (2009)
L. Stojanovic, A. Maedche, B. Motik, and N. Stojanovic. Knowledge Engineering and Knowledge Management. Ontologies and the Semantic Web : 13th International Conference, EKAW 2002, Siguenza, Spain, October 1-4, 2002. Proceedings, page 133--140. (2002)