C. Kennedy, and C. Giraud-Carrier. Proceedings of the Genetic and Evolutionary
Computation Conference, 1, page 879--885. Orlando, Florida, USA, Morgan Kaufmann, (13-17 July 1999)
C. Kennedy, C. Giraud-Carrier, and D. Bristol. Third European Conference on the Principles of Data
Mining and Knowledge Discovery, page 360--365. Springer, (September 1999)