@book{229973,
	author = {Blumenthal, Uta-Renate, and ebrary, Inc.},
	title = {The investiture controversy},
	publisher = {University of Pennsylvania Press,},
	year = {c1988.},
	series = {Middle Ages series},
	address = {Philadelphia [Pa.] :},
	note = {Translation of: Der Investiturstreit.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10491859}
}