@book{223655,
	author = {Wardahl, Randi Bjorshol. and ebrary, Inc.},
	title = {The incorporation and integration of the king's tributary lands into the Norwegian realm, c. 1195-1397},
	publisher = {Brill,},
	year = {c2011.},
	series = {The Northern world ;},
	address = {Leiden ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10483809}
}