1. D. Applebaum. Probability and Information: An Integrated Approach. Cambridge, Cambridge, UK, 1996.
2. W. Banzhaf, P. Nordin, R. E. Keller, and F. D. Francone. Genetic Programming, An Introduction. Morgan Kaufmann, San Francisco CA, 1998.
3. Lect Notes Comput Sci;C. Gathercole,1994
4. C. Gathercole and P. Ross. Tackling the boolean even N parity problem with genetic programming and limited-error fitness. In John R. Koza, Kalyanmoy Deb, Marco Dorigo, David B. Fogel, Max Garzon, Hitoshi Iba, and Rick L. Riolo, editors, Genetic Programming 1997: Proceedings of the Second Annual Conference, pages 119–127, San Francisco, CA, USA, 1997. Morgan Kaufmann.
5. S. Haykin. Neural Networks: A Comprehensive Foundation. Prentice-Hall, London, UK, 1999.