(c) Riccardo Poli, William B. Langdon, and Nicholas F. McPhee, 2008.
This work is licensed under the Creative Commons AttributionNoncommercial-No Derivative Works 2.0 UK: England & Wales License (see http://creativecommons.org/licenses/by-nc-nd/2.0/uk/).
R. Poli, W. B. Langdon, and N. F. McPhee. A field guide to genetic programming. Published via http://lulu.com and freely available at http://www.gp-field-guide.org.uk, 2008. (With contributions by J. R. Koza). GPBiB