1. Austin, J.L.: How to Do Things with Words. Oxford University Press, Oxford (1962)
2. Dale, J., Mamdani, E.: Open standards for interoperating agent-based systems. Software Focus 2(1) (2001)
3. Flater, D.W.: Debugging agent interactions: a case study. Selected Areas in Cryptography,107–114 (2001)
4. Foundation for Intelligent Physical Agents. FIPA contract net interaction protocol specification. Technical report, FIPA (August 2001)
5. Foundation for Intelligent Physical Agents. FIPA query interaction protocol specification. Technical report, FIPA (August 2001)