{"id":"001023908","type":"book","title":"Radiocarbon age of the Laacher See Tephra: 11,230 +/- 40 BP","publisher-place":"Tucson, Arizona","pages":"149-154","container-title":"15th International Radiocarbon Conference, Glasgow, Scotland, 15-19 august 1994","author":[{"family":"Hajdas","given":"Irena"}],"issued":{"raw":"1995"}}