@book{218646,
	author = {Costa, Jo�ao, and ebrary, Inc.},
	title = {Subject positions and interfaces},
	publisher = {Mouton de Gruyter,},
	year = {2004.},
	series = {Studies in generative grammar ;},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10197219}
}