@inproceedings{POPL-1998-AriolaS,
	author        = "Zena M. Ariola and Amr Sabry",
	booktitle     = "{Proceedings of the 25th Symposium on Principles of Programming Languages}",
	doi           = "10.1145/268946.268952",
	editor        = "David B. MacQueen and Luca Cardelli",
	isbn          = "0-89791-979-3",
	pages         = "62--74",
	publisher     = "{ACM}",
	title         = "{Correctness of Monadic State: An Imperative Call-by-Need Calculus}",
	year          = 1998,
}