@book{15514,
	author = {Rothstein, Susan,},
	title = {Perspectives on Phrase Structure: Heads and Licensing /},
	publisher = {BRILL,},
	year = {1991.},
	series = {Syntax and Semantics;},
	address = {Leiden; },
	url = {http://dx.doi.org/10.1163/9789004373198}
}