@inproceedings{ESOP-1992-Jones,
	author        = "Mark P. Jones",
	booktitle     = "{Proceedings of the Fourth European Symposium on Programming}",
	doi           = "10.1007/3-540-55253-7_17",
	editor        = "Bernd Krieg-Brückner",
	isbn          = "3-540-55253-7",
	pages         = "287--306",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{A Theory of Qualified Types}",
	volume        = 582,
	year          = 1992,
}