R. Cazangi, F. Von Zuben, and M. Figueiredo. Proceedings of the 2003 Congress on Evolutionary Computation, 1, page 574--580. Canberra, Australia, IEEE Press, (2003)
J. Custódio, M. Figueiredo, E. Santin, and J. Goes. DoCEIS, volume 314 of IFIP Advances in Information and Communication Technology, page 541-548. Springer, (2010)