1. Buzing, P.C., Eiben, A.E., and Schut, M.C. 2005. Emerging communication and cooperation in evolving agent societies. Journal of Artificial Societies and Social Simulation 8(1).
http://jasss.soc.surrey.ac.uk/8/1/2.html
.
2. Chalub, F.A.C.C., F.C. Santos, and J.M. Pacheco. 2006. The evolution of norms. Journal of Theoretical Biology 241: 233–240.
3. Dorigo, M., V. Maniezzo, and A. Colorni. 1996. The ant system: Optimization by a colony of cooperating agents. IEEE Transactions on Systems, Man and Cybernetics – Part B 26(1): 29–41.
4. Grim, P., T. Kokalis, A. Alai-Tafti, N. Klib, and P. St Denis. 2004. Making meaning happen. Journal of Experimental & Theoretical Artificial Intelligence 16(4): 209–243.
5. Kawamura, H., M. Yamamoto, T. Mitamura, K. Suzuki, and A. Ohuchi. 1998. Cooperation search based on pheromone communication for vehicle routing problems. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E81-A-6: 1089–1096.