@inproceedings{POPL-1978-DowneySS,
	author        = "Peter J. Downey and Hanan Samet and Ravi Sethi",
	booktitle     = "{Conference Record of the Fifth Annual Symposium on Principles of Programming Languages}",
	doi           = "10.1145/512760.512777",
	editor        = "Alfred V. Aho and Stephen N. Zilles and Thomas G. Szymanski",
	pages         = "158--170",
	publisher     = "{ACM Press}",
	title         = "{Off-Line and On-Line Algorithms for Deducing Equalities}",
	year          = 1978,
}