Tetsuo Tamai, Naoyasu Ubayashi, Ryoichi Ichiyama. Objects as Actors Assuming Roles in the Environment. In Ricardo Choren, Alessandro F. Garcia, Holger Giese, Ho-Fung Leung, Carlos José Pereira de Lucena, Alexander B. Romanovsky, editors, Software Engineering for Multi-Agent Systems V, Research Issues and Practical Applications [the book is a result of SELMAS 2006]. Volume 4408 of Lecture Notes in Computer Science, pages 185-203, Springer, 2006. [doi]
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