{"id":"001190440","type":"book","title":"Zur Interpretation der Bausubstanz der Ruine Stein, Flur Planschwitz im Vogtland","pages":"56-79","container-title":"Burgenforschung aus Sachsen, 7 (1995","author":[{"family":"Billig","given":"Gerhard."}],"issued":{"raw":"1995"}}