@book{21888,
	author = {Strumia, Francesca.},
	title = {Supranational citizenship and the challenge of diversity :},
	publisher = {Martinus Nijhoff Publishers,},
	year = {2013.},
	series = {Nijhoff studies in EU law ;},
	address = {Leiden :},
	url = {http://dx.doi.org/10.1163/9789004260764}
}