1. G. Agha. Actors: A Model of Concurrent Computation in Distributed Systems. MIT Press, 1986.
2. G. Agha. “Foundational Issues in Concurrent Programming”. SIGPLAN,NOTICES, Vol. 24, No. 4, pp. 66 — 65, April 1989.
3. G. Attardi. “Concurrent Strategy Execution in Omega”. In: Object-Oriented Concurrent Programming, MIT Press, 1987.
4. R. G. Babb and D. C. DiNucci. “Design and Implementation of Parallel Programs with Large-Grain Datafiow”. In: L. H. Jamieson, D. B. Gannon, and R. J. Douglass, Eds., The Characteristics of Parallel Algorithms, pp. 335 — 349, MIT Press, 1987.
5. P. Coad and E. Yourdon. Object-Oriented Analysis. Prentice Hall, 1990.