1. The evolution of strategies in the iterated prisoner's dilemma;Axelrod,1987
2. Evolving 3D morphology and behavior by competition;Sims,1994
3. Blondie24: Playing at the Edge of AI;Fogel,2002
4. The Iterated Prisoners' Dilemma: 20 Years On;Kendall,2007
5. Evolution, neural networks, games, and intelligence;Chellapilla;Proc. IEEE,1999