J. Sakuma, and S. Kobayashi. GECCO '07: Proceedings of the 9th annual conference on Genetic and
evolutionary computation, page 1372--1379. New York, NY, USA, ACM, (2007)
C. Fonseca, and P. Fleming. Proceedings of the 5th International Conference on Genetic Algorithms, page 416--423. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (1993)