@inproceedings{LATA-2012-GaoS,
	author        = "Ziyuan Gao and Frank Stephan",
	booktitle     = "{Proceedings of the Sixth International Conference on Language and Automata Theory and Applications}",
	doi           = "10.1007/978-3-642-28332-1_22",
	isbn          = "978-3-642-28331-4",
	pages         = "252--263",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Learnability of Co-r.e. Classes}",
	volume        = 7183,
	year          = 2012,
}