Eric S. K. Yu. Agent-Oriented Modelling: Software versus the World. In Michael Wooldridge, Gerhard Weiß, Paolo Ciancarini, editors, Agent-Oriented Software Engineering II, Second International Workshop, AOSE 2001, Montreal, Canada, May 29, 2001, Revised Papers and Invited Contributions. Volume 2222 of Lecture Notes in Computer Science, pages 206-225, Springer, 2001. [doi]