Y. Kwon, S. Choi, and B. Moon. GECCO 2006: Proceedings of the 8th annual conference
on Genetic and evolutionary computation, 1, page 943--944. Seattle, Washington, USA, ACM Press, (8-12 July 2006)
S. Choi, and B. Moon. Genetic and Evolutionary Computation -- GECCO-2004,
Part I, volume 3102 of Lecture Notes in Computer Science, page 994--1005. Seattle, WA, USA, Springer-Verlag, (26-30 June 2004)