@book{19412,
	author = {Levine, Robert, and Simon Fraser University.},
	title = {Formal grammar},
	publisher = {Oxford University Press,},
	year = {1992.},
	series = {Vancouver studies in cognitive science ;},
	address = {New York :},
	note = {Papers from a Feb. 1989 conference hosted by the Cognitive Science Programme at Simon Fraser University.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10279507}
}