@inproceedings{FPCA-1989-RufW,
	author        = "Erik Ruf and Daniel Weise",
	booktitle     = "{Proceedings of the Fourth Conference on Functional Programming Languages and Computer Architecture}",
	doi           = "10.1145/99370.99400",
	isbn          = "0-201-51389-7",
	pages         = "327--339",
	publisher     = "{ACM Press}",
	title         = "{Nondeterminism and Unification in LogScheme: Integrating Logic and Functional Programming}",
	year          = 1989,
}