@inproceedings{WLC-2000-PopovicBPC,
	author        = "Zarko Popovic and Stojan Bogdanovic and Tatjana Petkovic and Miroslav Ciric",
	booktitle     = "{Proceedings of the Third International Colloquium on Words, Languages & Combinatorics}",
	isbn          = "978-9810249489",
	pages         = "378--395",
	publisher     = "{World Scientific}",
	title         = "{Generalized Directable Automata}",
	year          = 2000,
}