R. Cleary, and M. O'Neill. Evolutionary Computation in Combinatorial Optimization
-- EvoCOP~2005, volume 3448 of LNCS, page 34--45. Lausanne, Switzerland, Springer Verlag, (30 March-1 April 2005)
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)