@inproceedings{SAS-1997-Frey,
	author        = "Alexandre Frey",
	booktitle     = "{Proceedings of the Fourth International Static Analysis Symposium}",
	doi           = "10.1007/BFb0032747",
	isbn          = "3-540-63468-1",
	pages         = "265--277",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Satisfying Subtype Inequalities in Polynomial Space}",
	volume        = 1302,
	year          = 1997,
}