@inproceedings{ICALP-1983-Lange,
	author        = "Klaus-Jörn Lange",
	booktitle     = "{Proceedings of the 10th Colloquium on Automata, Languages and Programming}",
	doi           = "10.1007/BFb0036951",
	isbn          = "3-540-12317-2",
	pages         = "723--733",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Context-Free Controlled ETOL Systems}",
	volume        = 154,
	year          = 1983,
}