@inproceedings{ICFP-1998-Hutton,
	author        = "Graham Hutton",
	booktitle     = "{Proceedings of the Third International Conference on Functional Programming}",
	doi           = "10.1145/289423.289457",
	editor        = "Matthias Felleisen and Paul Hudak and Christian Queinnec",
	isbn          = "1-58113-024-4",
	pages         = "280--288",
	publisher     = "{ACM}",
	title         = "{Fold and Unfold for Program Semantics}",
	year          = 1998,
}