@inproceedings{STOC-1980-IbarraL,
	author        = "Oscar H. Ibarra and Brian S. Leininger",
	booktitle     = "{Proceedings of the 12th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800141.804675",
	pages         = "273--280",
	publisher     = "{ACM}",
	title         = "{The Complexity of the Equivalence Problem for Straight-Line Programs}",
	year          = 1980,
}