{"id":"001199791","type":"book","title":"Early Medieval North Holland surveyed. The Hollands Noorderkwartier sheet: Early Middle Ages of the archaeological map of the Netherlands","pages":"361-370","container-title":"Berichten van de Rijksdienst voor het Oudheidkundig Bodemonderzoek, 43 (1998/99","author":[{"family":"Woltering","given":"P. J."}],"issued":{"raw":"1998"}}