@inproceedings{AFL-2014-Klima,
	author        = "Ondrej Klíma",
	booktitle     = "{Proceedings of the 14th International Conference on Automata and Formal Languages}",
	doi           = "10.4204/EPTCS.151.3",
	pages         = "49--54",
	series        = "{EPTCS}",
	title         = "{On Varieties of Automata Enriched with an Algebraic Structure}",
	volume        = 151,
	year          = 2014,
}