@inproceedings{LICS-2005-LamarcheS,
	author        = "François Lamarche and Lutz Straßburger",
	booktitle     = "{Proceedings of the 20th IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.2005.13",
	isbn          = "0-7695-2266-1",
	pages         = "209--218",
	publisher     = "{IEEE Computer Society}",
	title         = "{Constructing Free Boolean Categories}",
	year          = 2005,
}