P. Massey, J. Clark, und S. Stepney. GECCO 2005: Proceedings of the 2005 conference on
Genetic and evolutionary computation, 2, Seite 1657--1663. Washington DC, USA, ACM Press, (25-29 June 2005)
M. Fukumi, S. Omatu, und Y. Nishikawa. Proceedings of the IEEE International joint Conference on Neural
Networks 1995, IJCNN'95, 4, Seite 1834--1838. IEEE Computer Society, (November 1995)