1. Communicating Sequential Processes;Hoare,1985
2. A Calculus of Communicating Systems;Milner,1980
3. An object calculus for asynchronous communication;Honda,1991
4. Asynchrony and the π-calculus;Boudol,1992
5. KLAIM: a kernel language for agents interaction and mobility;De Nicola;IEEE Trans. Softw. Eng.,1998