@book{11556,
	author = {Hybel, Nils.},
	title = {The nature of kingship c. 800-1300 :},
	publisher = {Brill,},
	year = {2018.},
	series = {The northern world ;},
	address = {Leiden :},
	note = {Includes index.},
	url = {http://dx.doi.org/10.1163/9789004358355}
}