The following publications are possibly variants of this publication:
- A Calculus of Mobile Processes, IIRobin Milner, Joachim Parrow, David Walker. iandc, 100(1):41-77, September 1992.
- A Calculus of Mobile Processes, IRobin Milner, Joachim Parrow, David Walker. iandc, 100(1):1-40, September 1992.