@inproceedings{POPL-1989-YelickZ,
	author        = "Katherine A. Yelick and Joseph L. Zachary",
	booktitle     = "{Conference Record of the 16th Annual Symposium on Principles of Programming Languages}",
	doi           = "10.1145/75277.75287",
	isbn          = "0-89791-294-2",
	pages         = "116--124",
	publisher     = "{ACM Press}",
	title         = "{Moded Type Systems for Logic Programming}",
	year          = 1989,
}