M. Kamboures, S. Nizkorodov, и R. Gerber. Proceedings of the National Academy of Sciences of the United States of America, 107 (15):
6600--6604(января 2010)
B. Rubinstein. Proceedings of the 2001 Congress on Evolutionary
Computation CEC2001, стр. 144--151. COEX, World Trade Center, 159 Samseong-dong,
Gangnam-gu, Seoul, Korea, IEEE Press, (27-30 May 2001)