Freefinement. (English) Zbl 1321.68209
Proceedings of the 39th annual ACM SIGPLAN-SIGACT symposium on principles of programming languages, POPL ’12, Philadelphia, PA, USA, January 22–28, 2012. New York, NY: Association for Computing Machinery (ACM) (ISBN 978-1-4503-1083-3). 7-18 (2012).