Gul Agha, Prasanna Thati. An Algebraic Theory of Actors and Its Application to a Simple Object-Based Language. In Olaf Owe, Stein Krogdahl, Tom Lyche, editors, From Object-Orientation to Formal Methods, Essays in Memory of Ole-Johan Dahl. Volume 2635 of Lecture Notes in Computer Science, pages 26-57, Springer, 2004.
Abstract is missing.