R. Poli, W. Langdon, and N. McPhee. Published via http://lulu.com and freely
available at
http://www.gp-field-guide.org.uk, (2008)(With contributions by J. R. Koza).
R. Poli, and W. Langdon. Genetic Programming 1998: Proceedings of the Third
Annual Conference, page 293--301. University of Wisconsin, Madison, Wisconsin, USA, Morgan Kaufmann, (22-25 July 1998)
R. Poli. Genetic Programming 1996: Proceedings of the First
Annual Conference, page 363--368. Stanford University, CA, USA, MIT Press, (28--31 July 1996)
R. Poli, J. Page, and W. Langdon. Proceedings of the Genetic and Evolutionary
Computation Conference, 2, page 1162--1169. Orlando, Florida, USA, Morgan Kaufmann, (13-17 July 1999)