C. Setzkorn, and R. Paton. Proceedings of the International Symposium on
Knowledge Exploration in Life Science Informatics,
KELSI 2004, volume 3303 of Lecture Notes in Artificial Inteligence, page 151--160. Milan, Italy, Springer, (25-26 November 2004)
E. Lukschandl, M. Holmlund, E. Moden, M. Nordahl, and P. Nordin. Late Breaking Papers at the Genetic Programming 1998
Conference, page 135--142. University of Wisconsin, Madison, Wisconsin, USA, Stanford University Bookstore, (22-25 July 1998)
T. Fuhner, and C. Jacob. Proceedings of the Genetic and Evolutionary
Computation Conference (GECCO-2001), page 176. San Francisco, California, USA, Morgan Kaufmann, (7-11 July 2001)