1. Axelord R. (1987). "The evolution of strategies in the iterated prisoner's dilemma ". ". L. Davis Pitman London and Morgan Kaufmann Publishers.
2. Cudsworth A.G. (1989). " Flood Hydrology Manual " A Water Resources Publication United States Department of the Interior Bureau of Reclamation Denver Co. U.S.A.
3. Davis L. and Coombs S. (1987) Optimizing Network Link Sizes with Genetic Algorithms Proc. Conferenece on Computer Simulation and Modeling Tucson AZ.
4. Goldberg D.E. (1986) Computer-aided gas pipeline operation using Genetic Algorithms and Rule Learning Ph.D Thesis University of Alabama.