@article {2011,
	title = {Liudger, apostel fan {\textquoteright}e Friezen?},
	journal = {It Beaken},
	volume = {73},
	year = {2011},
	pages = {89-102},
	author = {Wagenaar, Hinne}
}
@article {2006,
	title = {Boniface and the Frisian Lands Revisited. Outline of a Precarious Historical Relationship},
	journal = {It Beaken},
	volume = {68},
	year = {2006},
	pages = {114-159},
	author = {Wagenaar, Hinne}
}
