@inproceedings{AFL-2011-HolzerJK,
	author        = "Markus Holzer and Sebastian Jakobi and Martin Kutrib",
	booktitle     = "{Proceedings of the 13th International Conference on Automata and Formal Languages}",
	isbn          = "978-615-5097-19-5",
	pages         = "197--210",
	title         = "{The Chop of Languages}",
	year          = 2011,
}