{"id":"001432893","type":"book","title":"Die Suche nach dem verschollenen Grosssteingrab G4 'Onner es' (Onnen, Prov. Groningen)","pages":"57-84","container-title":"Palaeohistoria, 55/56 (2013/14","author":[{"family":"Groenendijk","given":"H.A."}],"issued":{"raw":"2014"}}