Created by W.Langdon from gp-bibliography.bib Revision:1.8620
http://www.cs.ucl.ac.uk/staff/W.Langdon/ftp/papers/directed_crossover.pdf",
http://www.cs.ucl.ac.uk/staff/W.Langdon/ftp/papers/directed_crossover.ps",
The second section describes current research on biasing the action of reproduction operators within the genetic programming field.",
Genetic Programming entries for William B Langdon