1. Sutton, R.S., Barto, A.G.: Reinforcement Learning, An Introduction. MIT Press, UK (1998)
2. Russel, S.J., Norvig, P.: Artificial Intelligence, A Modern Approach. Prentice Hall, New Jersey (2003)
3. Vlassis, N.: Multiagent Systems and Distributed AI. In: Intelligent Autonomous Systems. Informatics Institute, University of Amsterdam (2003)
4. Sousa, C., Custdio, L.: Cooperative Reinforcement Learning: exploring Communication and Cooperation Problems. In: Proceedings of the 6th IEEE International Symposium on Computational Intelligence in Robotics and Automation (2005)
5. Dietterich, T.G.: The MAXQ Method for Hierarquical Reinforcement Learning. In: International Conference on Machine Learning (1998)