@inproceedings{CADE-1992-NipkowQ,
	author        = "Tobias Nipkow and Zhenyu Qian",
	booktitle     = "{Proceedings of the 11th International Conference on Automated Deduction}",
	doi           = "10.1007/3-540-55602-8_156",
	isbn          = "3-540-55602-8",
	pages         = "66--78",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Reduction and Unification in Lambda Calculi with Subtypes}",
	volume        = 607,
	year          = 1992,
}