@article{DLT-J-2011-SayY12,
	author        = "A. C. Cem Say and Abuzer Yakaryilmaz",
	doi           = "10.1142/S012905411250013X",
	journal       = "{International Journal of Foundations of Computer Science}",
	number        = 5,
	pages         = "1099--1116",
	publisher     = "{World Scientific}",
	title         = "{Quantum Counter Automata}",
	volume        = 23,
	year          = 2012,
}