S. Izmalkov, S. Micali, und M. Lepinski. Proceedings of the 46th Annual IEEE Symposium on Foundations of Computer
Science, 2005., Seite 585-594. New York, NJ, USA, IEEE Computer Society, (Oktober 2005)
S. Bhattacharyya. KDD '00: Proceedings of the sixth ACM SIGKDD
international conference on Knowledge discovery and
data mining, Seite 465--473. Boston, Massachusetts, United States, ACM Press, (2000)
M. French, {. Szepesvári, und E. Rogers. Proceedings of the International Symposium on the Mathematical Theory of Networks and Systems (MTNS 2000), (2000)