@book{197070,
	author = {Cross, Richard. and ebrary, Inc.},
	title = {Duns Scotus},
	publisher = {Oxford University Press,},
	year = {1999.},
	series = {Great medieval thinkers},
	address = {New York ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10142491}
}