@inproceedings{Phi93,
   author = {I.C.C. Phillips},
   title = {A Note on Expressiveness of Process Algebra},
   booktitle = {Proceedings of the First Imperial College
Department of Computing Workshop on Theory and Formal Methods},
   editor = {G.L. Burn and S. Gay and M.D. Ryan},
   series = {Workshops in Computing},
   publisher = {Springer-Verlag},
   pages = {260-264},
   year = 1993
}