@inproceedings{STOC-1981-UkkonenS,
	author        = "Esko Ukkonen and Eljas Soisalon-Soininen",
	booktitle     = "{Proceedings of the 13th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800076.802473",
	pages         = "202--206",
	publisher     = "{ACM}",
	title         = "{LALR(k) Testing is PSPACE-Complete}",
	year          = 1981,
}