{"id":"000042179","type":"book","title":"Der Fulbert-Stollen am Laacher See","publisher":"Rheinland-Verl.","publisher-place":"Köln","container-title":"Veröffentlichungen des Förderkreises Vermessungstechnisches Museum e.V.,Dortmund, 1","author":[{"family":"Grewe","given":"Klaus"}],"issued":{"raw":"1979"}}