1. Martín Abadi and Luca Cardelli. A Theory of Objects. Monographs in Computer Science. Springer-Verlag, Berlin, 1996.
2. Ken Arnold and James Gosling. The Java Programming Language. The Java Series. Addison-Wesley, Reading, MA, 1996.
3. Pierre America. POOL-T: A parallel object-oriented language. In Akinori Yonezawa and Mario Tokoro, editors, Object-Oriented Concurrent Programming, pages 199–220. The MIT Press, Cambridge, MA, 1987.
4. Harold Abelson and Gerald Sussman. Structure and Interpretation of Computer Programs. The MIT Press, Cambridge, MA, second edition, 1996.
5. Gul Agha, Peter Wegner, and Akinori Yonezawa. Research Directions in Concurrent Object-Oriented Programming. The MIT Press, Cambridge, MA, 1993.