@inproceedings{HJ11UFP, title = "Proving The Unique Fixed-Point Principle Correct", author = "Hinze, Ralf and James, Daniel W. H.", year = "2011", address = "New York, NY, USA", booktitle = "Proceeding of the 16th ACM SIGPLAN international conference on Functional programming", isbn = "978-1-4503-0865-6", location = "Tokyo, Japan", month = "September", pages = "359--371", publisher = "ACM", series = "ICFP '11", url = "http://www.comlab.ox.ac.uk/people/daniel.james/unique.html", doi = "10.1145/2034773.2034821", }