@inproceedings{POPL-2010-Hutchins,
	author        = "DeLesley S. Hutchins",
	booktitle     = "{Proceedings of the 37th Symposium on Principles of Programming Languages}",
	doi           = "10.1145/1706299.1706334",
	editor        = "Manuel V. Hermenegildo and Jens Palsberg",
	isbn          = "978-1-60558-479-9",
	pages         = "287--298",
	publisher     = "{ACM}",
	title         = "{Pure subtype systems}",
	year          = 2010,
}