@inproceedings{LICS-1991-Pfenning,
	author        = "Frank Pfenning",
	booktitle     = "{Proceedings of the Sixth Annual Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.1991.151632",
	isbn          = "0-8186-2230-X",
	pages         = "74--85",
	publisher     = "{IEEE Computer Society}",
	title         = "{Unification and Anti-Unification in the Calculus of Constructions}",
	year          = 1991,
}