Giancarlo Guizzardi. Agent Roles, Qua Individuals and ::::the Counting Problem::::. In Alessandro F. Garcia, Ricardo Choren, Carlos José Pereira de Lucena, Paolo Giorgini, Tom Holvoet, Alexander B. Romanovsky, editors, Software Engineering for Multi-Agent Systems IV, Research Issues and Practical Applications [the book is a result of SELMAS 2005]. Volume 3914 of Lecture Notes in Computer Science, pages 143-160, Springer, 2005. [doi]
Abstract is missing.