1. Bonabeau (E.),Dorigo (M.),Theraulaz (G.),Swarm Intelligence: From Natural to Artfical Systems. Oxford University Press, 1999.
2. Boyle (J.),Cohen (R.),Durham (D.),Herzog (S.),Rajan (R.),Sastry (A.),rfc274: Thecops (Common Open Policy Service) Protocol,ieft, January 2000.
3. Di Caro (G.),Dorigo (M.), AntNet: Distributed Stigmergetic Control for Communications Networks,Journal of Artificial Intelligence Research, 9:317–365, Dec 1998.
4. Chomicki (J.),Lobo (J.),Naqvi (S.), A logic programming approach to conflict resolution in policy management, InKR2000. Principles of Knowledge Representation and Reasoning, pages 121–132, San Francisco, 2000. Morgan Kaufmann.
5. Damianou (C.N.),A Policy Framework for Management of Distributed Systems, PhD thesis, Imperial College of Science, Technology and Medicine, University of London, Departement of Computing, February 2002.