@inproceedings{ECOOP-1993-LiskovW,
	author        = "Barbara Liskov and Jeannette M. Wing",
	booktitle     = "{Proceedings of the Seventh European Conference on Object-Oriented Programming}",
	doi           = "10.1007/3-540-47910-4_8",
	editor        = "Oscar Nierstrasz",
	isbn          = "3-540-57120-5",
	note          = "Corrigenda: SIGPLAN Notices 29(4): 4 (1994)",
	pages         = "118--141",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{A New Definition of the Subtype Relation}",
	volume        = 707,
	year          = 1993,
}