@inproceedings{STOC-1981-CulikH,
	author        = "Karel Culik II and Tero Harju",
	booktitle     = "{Proceedings of the 13th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800076.802451",
	pages         = "1--6",
	publisher     = "{ACM}",
	title         = "{The ω-Sequence Equivalence Problem for DOL Systems Is Decidable}",
	year          = 1981,
}