{"id":"001513625","type":"book","title":"A Rock Crystal Workshop from Cologne","publisher":"Verlag des Römisch-Germanisches Zentralmuseums","publisher-place":"Mainz","pages":"137-147","container-title":"Gemstones in the first Millennium AD : mines, trade, workshops and symbolism : international conference, October 20th - 22nd, 2015, Römisch-Germanisches Zentralmuseum, Mainz","author":[{"family":"Burianek","given":"Manfred"}],"issued":{"raw":"2017"}}