@inproceedings{CCIPL-1989-HarperP,
	author        = "Robert Harper and Robert Pollack",
	booktitle     = "{Proceedings of the Third International Joint Conference on Theory and Practice of Software Development, Volume 2: Colloquium on Current Issues in Programming Languages}",
	doi           = "10.1007/3-540-50940-2_39",
	isbn          = "3-540-50940-2",
	pages         = "241--256",
	publisher     = "{Springer}",
	title         = "{Type Checking, Universe Polymorphism, and Typical Ambiguity in the Calculus of Constructions (Draft)}",
	year          = 1989,
}