T. Yu, и J. Miller. GECCO 2002: Proceedings of the Genetic and
Evolutionary Computation Conference, стр. 704. New York, Morgan Kaufmann Publishers, (9-13 July 2002)
T. Yu, и J. Miller. Genetic Programming, Proceedings of EuroGP'2001, том 2038 из LNCS, стр. 204--217. Lake Como, Italy, Springer-Verlag, (18-20 April 2001)