1. Calculus of Communicating Systems;Milner,1980
2. Concurrency and automata on infinite sequences;Park,1981
3. Communication and Concurrency;Milner,1989
4. A calculus of mobile processes, (parts I and II);Milner;Information and Computation,1992
5. B. Thomsen. Calculus for Higher Order Communicating Systems. PHD thesis, Department of Computing, Imperial College, 1990