J. Thangavelautham, and G. D'Eleuterio. PPSN VIII: Proc. 8th Int'l Conf. on Parallel
Problem Solving from Nature, volume 3242 of LNCS, page 991--1000. Birmingham, UK, Springer, (18-22 Sept. 2004)
M. Fukumi, S. Omatu, and Y. Nishikawa. Proceedings of the IEEE International joint Conference on Neural
Networks 1995, IJCNN'95, 4, page 1834--1838. IEEE Computer Society, (November 1995)