@book{55063,
	author = {Ferraiolo, David. and Kuhn, D. Richard. and ebrary, Inc.},
	title = {Role-based access control},
	publisher = {Artech House,},
	year = {c2003.},
	series = {Artech House computer security series},
	address = {Boston :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10081904}
}