1. Lect Notes Comput Sci;R. Amadio,1996
2. Boudol, G.: Asynchrony and the χ-Calculus. Research Report 1702, INRIA, Sophia-Antipolis (1992)
3. Fu, Y.: The χ-Calculus. Proceedings of the International Conference on Advances in Parallel and Distributed Computing, March 19th–21th, Shanghai, IEEE Computer Society Press (1997) 74–81
4. Lect Notes Comput Sci;Y. Fu,1997
5. Fu, Y.: Reaction Graph. To appear in Journal of Computer Science and Technology (1998)