G. Khan, J. Miller, and D. Halliday. GECCO '07: Proceedings of the 9th annual conference on
Genetic and evolutionary computation, 1, page 269--276. London, ACM Press, (7-11 July 2007)
P. Dittrich, A. Skusa, W. Kantschik, and W. Banzhaf. Proceedings of the Genetic and Evolutionary
Computation Conference, 2, page 1002--1008. Orlando, Florida, USA, Morgan Kaufmann, (13-17 July 1999)
S. Gotshall, and T. Soule. GECCO '07: Proceedings of the 9th annual conference on
Genetic and evolutionary computation, 1, page 253--260. London, ACM Press, (7-11 July 2007)