@inproceedings{STOC-1972-ChandraM,
	author        = "Ashok K. Chandra and Zohar Manna",
	booktitle     = "{Proceedings of the Fourth Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800152.804896",
	pages         = "52--64",
	publisher     = "{ACM}",
	title         = "{Program Schemas with Equality}",
	year          = 1972,
}