@book {2017,
	title = {De Nederlandse paus . Adrianus van Utrecht. 1459-1523},
	year = {2017},
	pages = {320},
	publisher = {Balans},
	organization = {Balans},
	address = {Amsterdam},
	isbn = {978-94-6003-121-2 },
	author = {Geurts, Twan}
}
@book {2017,
	title = {De Nederlandse paus. Adrianus van Utrecht, 1459-1523},
	year = {2017},
	pages = {320},
	publisher = {Balans},
	organization = {Balans},
	address = {Amsterdam},
	isbn = {978-94-6003-121-2},
	author = {Geurts, Twan}
}
