A. Teredesai, J. Park, и V. Govindaraju. Genetic Programming, Proceedings of EuroGP'2001, том 2038 из LNCS, стр. 371--379. Lake Como, Italy, Springer-Verlag, (18-20 April 2001)
I. Dempsey, M. O'Neill, и A. Brabazon. GECCO 2005: Proceedings of the 2005 conference on
Genetic and evolutionary computation, 2, стр. 1665--1671. Washington DC, USA, ACM Press, (25-29 June 2005)