Gérard Boudol, Ilaria Castellani, Matthew Hennessy, Astrid Kiehn. A Theory of Process with Localities (Extended Abstract). In Rance Cleaveland, editor, CONCUR 92, Third International Conference on Concurrency Theory, Stony Brook, NY, USA, August 24-27, 1992, Proceedings. Volume 630 of Lecture Notes in Computer Science, pages 108-122, Springer, 1992.