M. Ahluwalia, and L. Bull. Proceedings of the Genetic and Evolutionary
Computation Conference, 2, page 947--952. Orlando, Florida, USA, Morgan Kaufmann, (13-17 July 1999)
A. Hernandez-Aguirre, and C. Coello-Coello. Proceedings of the 2004 IEEE Congress on Evolutionary
Computation, 2, page 1309--1316. Portland, Oregon, IEEE Press, (20-23 June 2004)
A. Aguirre, C. Coello, and B. Buckles. Proceedings of the The First NASA/DOD Workshop on
Evolvable Hardware, page 46--53. Pasadena, California, IEEE Computer Society, (19-21 July 1999)