@book{139215,
	author = {Oram, Richard D. and ebrary, Inc.},
	title = {The reign of Alexander II, 1214-49},
	publisher = {Brill,},
	year = {2005.},
	series = {The northern world,},
	address = {Leiden ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10171795}
}