{"id":"001331963","type":"book","title":"Gemmensiegel und andere in Steinschnitt hergestellte Siegel des Mittelalters","publisher":"Universitäts-Buchhandlung Leuschner & Lubensky","publisher-place":"Graz ; Wien ; Leipzig","author":[{"family":"Hiebaum","given":"Gerta"}],"issued":{"raw":"1931"}}