S. Barrett, and W. Langdon. Applications of Soft Computing: Recent Trends, page 99--110. On the World Wide Web, Springer, (19 September - 7 October 2005 2006)
R. Poli, C. Di Chio, and W. Langdon. GECCO 2005: Proceedings of the 2005 conference on
Genetic and evolutionary computation, 1, page 169--176. Washington DC, USA, ACM Press, (25-29 June 2005)
W. Langdon. Proceedings of the Seventeenth Belgium/Netherlands
Conference on Artificial Intelligence (BNAIC 2005), page 365--366. Koninklijke Vlaamse Academie van Belgie voor
Wetenschappen en Kunsten, Brussel, Belgium, Royal Flemish Academy of Belgium for Science and Arts,
KVAB, (17-18 October 2005)