P. Welch, and F. Barnes. Communicating Sequential Processes. The First 25 Years, volume 3525 of Lecture Notes in Computer Science, Springer Berlin / Heidelberg, 10.1007/11423348_10.(April 2005)
J. Reppy, C. Russo, and Y. Xiao. Proceedings of the 14th ACM SIGPLAN international conference on Functional programming, page 257--268. New York, NY, USA, ACM, (August 2009)