{"id":"001581707","type":"article","title":"Matronensteine von Berkum","publisher":"[Verein von Altertumsfreunden im Rheinlande]","publisher-place":"Bonn","pages":"49-64","container-title":"Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande, 67 (1879","author":[{"family":"Klein","given":"Joseph"}],"issued":{"raw":"1879"}}