@inproceedings{LFP-1992-WangH,
	author        = "Edward Wang and Paul N. Hilfinger",
	booktitle     = "{Proceedings of the Conference on Lisp and Functional Programming}",
	doi           = "10.1145/141471.141544",
	isbn          = "0-89791-481-3",
	pages         = "216--225",
	publisher     = "{ACM Press}",
	title         = "{Analysis of Recursive Types in Lisp-Like Languages}",
	year          = 1992,
}