Agents and multi-agent systems : formalisms, methodologies, and applications : based on the AI'97 Workshops on Commonsense Reasoning, Intelligent Agents, and Distributed Artificial Intelligence, Perth, Australia, December 1, 1997 - Wobcke, Wayne, 1963-; Pagnucco, Maurice; Zhang, Chengqi, 1957- (Lecture notes in computer science ;, 1998)