@inproceedings{LFP-1990-Leivant,
	author        = "Daniel Leivant",
	booktitle     = "{Proceedings of the 1990 ACM Conference on LISP and Functional Programming}",
	doi           = "10.1145/91556.91675",
	isbn          = "0-89791-368-X",
	pages         = "288--297",
	publisher     = "{ACM Press}",
	title         = "{Discrete Polymorphism}",
	year          = 1990,
}