@inproceedings{STOC-1980-Tompa80a,
	author        = "Martin Tompa",
	booktitle     = "{Proceedings of the 12th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800141.804682",
	pages         = "333--338",
	publisher     = "{ACM}",
	title         = "{Two Familiar Transitive Closure Algorithms which Admit No Polynomial Time, Sublinear Space Implementations}",
	year          = 1980,
}