Ackley, D. H. and Littman, M. L. (1994). Altruism in the evolution of communication. In (Brooks and Maes, 1994), pages 40--48.

Akiyama, E. and Kaneko, K. (1997). Evolution of communication and strategies in an iterated three-person game. In Langton, C. G. and Shimohara, K., editors, Artificial Life V (1996), pages 150--158. MIT Press.

Angeline, P. J. and Pollack, J. B. (1994). Competitive environments evolve better solutions for complex tasks. In Forrest, S., editor, Proceedings of the Fifth International Conference on Genetic Algorithms. Morgan Kaufmann.

Angeline, P. J., Saunders, G. M., and Pollack, J. B. (1994). An evolutionary algorithm that constructs recurrent neural networks. IEEE Transactions on Neural Networks, 5:54--65.

Brooks, R. A. and Maes, P., editors (1994). Artificial Life IV. MIT Press.

Cliff, D. and Miller, G. F. (1995). Tracking the red queen: Measurments of adaptive progress in co-evolutionary simulations. In Moran, F. et al., editors, Third European Conference on Artificial Life, pages 200--218. Springer Verlag.

Cliff, D. and Miller, G. F. (1996). Co-evolution of pursuit and evasion 2: Simulation methods and results. In (Maes et al., 1996), pages 506--515.

Crutchfield, J. P. (1994). The calculi of emergence: Computation, dynamics, and induction. Physica D, 75:11--54.

Di Paolo, E. A. (1997). Social coordination and spatial organization: Steps towards the evolution of communication. In Husbands, P. and Harvey, I., editors, Fourth European Conference on Artificial Life, pages 464--473. MIT Press.

Gregory M. Saunders, J. B. P. (1996). The evolution of communication schemes over continuous channaels. In (Maes et al., 1996), pages 580--589.

Hamilton, W. D., Axelrod, R., and Tanese, R. (1990). Sexual reproduction as an adaptation to resist parasites (a review). Proc. Natl. Acad. Sci. USA, 87:3566--3573.

Hamming, R. W. (1980). Coding and Information Theory. Prentice-Hall, Inc., Englewood Cliffs, NJ.

Hashimoto, T. and Ikegami, T. (1996). Emergence of netgrammar in communicating agents. BioSystems, 38(1):1-14.

Isaacs, R. (1965). Differential Games. John Wiley and Sons, New York.

Kaneko, K. and Suzuki, J. (1994). Evolution to the edge of chaos in an imitation game. In Langton, C. G., editor,

Artificial Life III (1992), pages 43--54. Addison-Wesley.

Koza, J. (1992). Genetic Programming. MIT Press.

Langton, C. G. and Shimohara, K., editors (1997). Artificial Life V (1996). MIT Press.

Maes, P. et al., editors (1996). From Animals to Animats IV. MIT Press.

Miller, G. F. and Cliff, D. (1994). Protean behavior in dynamic games: Arguments for the co-evolution of pursuitevasion tactics. In Cliff, D. et al., editors, From Animals to Animats III, pages 411--420. MIT Press.

Oliphant, M. and Batali, J. (1996). Learning and the emergence of coordinated communication. (Submitted).

Pollack, J. B., Blair, A., and Land, M. (1997). Coevolution of a backgammon player. In (Langton and Shimohara, 1997).

Reynolds, C. (1994). Competition, coevolution and the game of tag. In (Brooks and Maes, 1994), pages 59--69.

Steels, L. (1997). Self-organising vocabularies. In (Langton and Shimohara, 1997), pages 136--141.

Werner, G. M. and Dyer, M. G. (1991). Evolution of communication in artificial organisms. In Langton, C., Taylor, C., Farmer, J., and Rasmussen, S., editors, Artificial Life II (1990), pages 659--687. Addison-Wesley.

Zhu, H. and Kinzel, W. (1997). Anti-predictable sequences: Harder to predict than a random sequence. (Submitted).