@book {2021,
	title = {De bijl van Sint-Olav. Op zoek naar Noorse kerkschatten in de Nederlanden },
	year = {2021},
	pages = {272},
	publisher = {Walburg Pers},
	organization = {Walburg Pers},
	address = {Zutphen},
	isbn = {9789462496545},
	author = {Sicking, Louis H.J.}
}
