@inproceedings{STOC-1980-Ukkonen,
	author        = "Esko Ukkonen",
	booktitle     = "{Proceedings of the 12th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800141.804650",
	pages         = "29--38",
	publisher     = "{ACM}",
	title         = "{A Decision Method for the Equivalence of some Non-Real-Time Deterministic Pushdown Automata}",
	year          = 1980,
}