{"id":"001375150","type":"book","title":"Trace Element Classification Diagrams of Pyroclastic Rocks from the Volcanic Districts of Central Italy","publisher":"Oxford University, Research Laboratory for Archaeology and the History of Art","publisher-place":"Oxford","pages":"993-1019","container-title":"Archaeometry, 55 (2013","author":[{"family":"Marra","given":"Francesco la"}],"issued":{"raw":"2013"}}