A. Meyerson, and R. Williams. Proceedings of the Twenty-third ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, page 223-228. ACM, (2004)
B. Sertkaya. Proceedings of the 17th International Conference on Conceptual Structures (ICCS 2009), volume 5662 of Lecture Notes in Computer Science, page 284-292. Springer, (2009)
S. Bereg. SCG '05: Proceedings of the twenty-first annual symposium on Computational geometry, page 73--80. New York, NY, USA, ACM, (2005)Program Chair-Joe Mitchell and Program Chair-Günter Rote.