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)
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)