1. Woolridge, M., Jenning, N.R.: Intelligent agents: theory and practice. Knowl. Eng. Rev. 10(2), 115–152 (1995)
2. Franklin, S., Graesser, A.: Is it an agent, or just a program?: a taxonomy for autonomous agents, In: Müller, J.P., Woolridge, M., Jennings, N.R. (eds.), Proceedings of ECAI’96 Workshop on Intelligent Agents III, Agent Theories, Architectures, and Languages, pp. 21–35. Springer, New York (1997)
3. Holland, J.H.: Emergence: From Chaos To Order. Perseus Book, Cambridge (1998)
4. Woolridge, M.: An introduction to multiagent systems, 2nd Ed.. Wiley, New York (2002)
5. Pais, D.: Emergent collective behavior in multi-agent systems: an evolutionary perspective. Ph.D. Dissertation, Princeton University, Princeton (2012)