I. Dhillon, S. Mallela, and D. Modha. Proceedings of The Ninth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining(KDD-2003), page 89--98. (2003)
I. Sarafis, A. Zalzala, and P. Trinder. In Proceedings of the 2002 Congress on Evolutionary Computation CEC2002, page 1238--1243. IEEE Academic Press, (2002)