W. Kantschik, and W. Banzhaf. Genetic Programming, Proceedings of EuroGP'2001, volume 2038 of LNCS, page 302--312. Lake Como, Italy, Springer-Verlag, (18-20 April 2001)
M. Ebner, M. Reinhardt, and J. Albert. Proceedings of the 8th European Conference on Genetic
Programming, volume 3447 of Lecture Notes in Computer Science, page 261--270. Lausanne, Switzerland, Springer, (30 March - 1 April 2005)
B. Andersson, P. Svensson, P. Nordin, and M. Nordahl. Real-World Applications of Evolutionary Computing, volume 1803 of LNCS, page 319--326. Edinburgh, Springer-Verlag, (17 April 2000)
R. Aler, D. Borrajo, and P. Isasi. Proceedings of the 2001 Congress on Evolutionary
Computation CEC2001, page 1220--1227. COEX, World Trade Center, 159 Samseong-dong,
Gangnam-gu, Seoul, Korea, IEEE Press, (27-30 May 2001)