Intelligent Agents IV: Agent Theories, Architectures, and Languages 4th International Workshop, ATAL'97, Providence, Rhode Island, USA, July 24-26, 1997, Proceedings - Singh, Munindar P.; Singh, Munindar P.; Rao, Anand; Rao, Anand; Wooldridge, Michael J.; Wooldridge, Michael J. (Springer Berlin Heidelberg : Imprint: Springer, 1998)