Communicating and Mobile Systems: The Pi Calculus: Milner, Robin: 9780521658690: Amazon.com: Books
Calculus 2: Infinite Sequences and Series (58 of 86) How to Find the Value of pi: Part 1 - YouTube
Security in Process Calculi CS 395T. Overview uPi calculus Core language for parallel programming Modeling security via name scoping uApplied pi calculus. - ppt download