@inproceedings{CSL-2000-Aspinall,
	author        = "David Aspinall",
	booktitle     = "{Proceedings of the 14th EACSL Annual Conference on Computer Science Logic}",
	doi           = "10.1007/3-540-44622-2_10",
	isbn          = "3-540-67895-6",
	pages         = "156--171",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Subtyping with Power Types}",
	volume        = 1862,
	year          = 2000,
}