@article{AFL-J-2008-LehtinenO10,
	author        = "Tommi Lehtinen and Alexander Okhotin",
	doi           = "10.1142/S0129054110007568",
	journal       = "{International Journal of Foundations of Computer Science}",
	number        = 5,
	pages         = "799--815",
	publisher     = "{World Scientific}",
	title         = "{Boolean Grammars and GSM Mappings}",
	volume        = 21,
	year          = 2010,
}