@inproceedings{POPL-2012-ChughRJ,
	author        = "Ravi Chugh and Patrick Maxim Rondon and Ranjit Jhala",
	booktitle     = "{Proceedings of the 39th Symposium on Principles of Programming Languages}",
	doi           = "10.1145/2103656.2103686",
	editor        = "John Field and Michael Hicks",
	isbn          = "978-1-4503-1083-3",
	pages         = "231--244",
	publisher     = "{ACM}",
	title         = "{Nested refinements: a logic for duck typing}",
	year          = 2012,
}