S. Roberts, D. Howard, and J. Koza. Genetic Programming, Proceedings of EuroGP'2001, volume 2038 of LNCS, page 160--175. Lake Como, Italy, Springer-Verlag, (18-20 April 2001)
G. Pazienza, K. Karacs, and X. Vilasis-Cardona. European Conference on Circuit Theory and Design,
ECCTD 2007, page Paper ID 5290. Seville, Spain, IEEE, (August 2007)
P. Nordin, F. Hoffmann, F. Francone, M. Brameier, and W. Banzhaf. Proceedings of the Congress on Evolutionary
Computation, 2, page 1059--1066. Mayflower Hotel, Washington D.C., USA, IEEE Press, (6-9 July 1999)
J. Zuo, C. Tang, C. Li, C. an Yuan, and A. long Chen. Advances in Web-Age Information Management: 5th
International Conference, WAIM 2004, volume 3129 of Lecture Notes in Computer Science, page 55--64. Dalian, China, Springer, (15-17 July 2004)
P. Walsh. Proceedings of the Congress on Evolutionary
Computation, 2, page 1027--1034. Mayflower Hotel, Washington D.C., USA, IEEE Press, (6-9 July 1999)
K. Sharman, and A. Esparcia-Alcazar. Proceedings of the Second International Conference on
Natural Algorithms in Signal Processing, NASP'93, Essex University, UK, (15-16 November 1993)
C. Janeczko, and H. Lopes. Proceedings of the 2000 Congress on Evolutionary
Computation CEC00, page 373--378. La Jolla Marriott Hotel La Jolla, California, USA, IEEE Press, (6-9 July 2000)
K. Benson. Proceedings of the 2000 Congress on Evolutionary
Computation CEC00, page 1543--1549. La Jolla Marriott Hotel La Jolla, California, USA, IEEE Press, (6-9 July 2000)