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)
M. Brameier, and W. Banzhaf. Genetic Programming, Proceedings of EuroGP'2003, volume 2610 of LNCS, page 286--296. Essex, Springer-Verlag, (14-16 April 2003)
M. Brameier, and W. Banzhaf. Genetic Programming, Proceedings of the 5th European
Conference, EuroGP 2002, volume 2278 of LNCS, page 37--49. Kinsale, Ireland, Springer-Verlag, (3-5 April 2002)
W. Kantschik, P. Dittrich, M. Brameier, and W. Banzhaf. Genetic Programming, Proceedings of EuroGP'99, volume 1598 of LNCS, page 15--28. Goteborg, Sweden, Springer-Verlag, (26-27 May 1999)