"Communicating Sequential Processes" by Tony Hoare http://www.usingcsp.com/ http://www.usingcsp.com/ I read it multiple times and still don't quite understand

"Communicating Sequential Processes" by Tony Hoare http://www.usingcsp.com/ http://www.usingcsp.com/ I read it multiple times and still don't quite understand it all. There are more great papers i read but this one comes back to mind more often then others.