E. Burke, S. Gustafson, и G. Kendall. Genetic Programming, Proceedings of the 5th European
Conference, EuroGP 2002, том 2278 из LNCS, стр. 238--247. Kinsale, Ireland, Springer-Verlag, (3-5 April 2002)
G. Spencer. Proceedings of the 5th International Conference on
Genetic Algorithms, ICGA-93, стр. 654. University of Illinois at Urbana-Champaign, Morgan Kaufmann, (17-21 July 1993)