@inproceedings{OOPSLA-1997-VitekHK,
	author        = "Jan Vitek and R. Nigel Horspool and Andreas Krall",
	booktitle     = "{Proceedings of the 12th Conference on Object-Oriented Programming, Systems, Languages and Applications}",
	doi           = "10.1145/263698.263730",
	editor        = "Mary E. S. Loomis and Toby Bloom and A. Michael Berman",
	isbn          = "0-89791-908-4",
	pages         = "142--157",
	publisher     = "{ACM}",
	title         = "{Efficient Type Inclusion Tests}",
	year          = 1997,
}