@inproceedings{CADE-1992-NipkowP,
	author        = "Tobias Nipkow and Lawrence C. Paulson",
	booktitle     = "{Proceedings of the 11th International Conference on Automated Deduction}",
	doi           = "10.1007/3-540-55602-8_201",
	isbn          = "3-540-55602-8",
	pages         = "673--676",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Isabelle-91}",
	volume        = 607,
	year          = 1992,
}