{"id":"001553947","type":"article","title":"On the interpretation of geophysical data and the suggested presence of a western moat at Gråborg on Öland","publisher":"Kungl. Vitterhets historie och antikvitets akademien]","publisher-place":"[Stockholm","pages":"1-9","container-title":"Fornvännen, 112 (2017","author":[{"family":"Viberg","given":"Andreas"}],"issued":{"raw":"2017"}}