{"id":"000788096","type":"book","title":"Volcanoes and the climate forcing of Carolingian Europe, A.D. 750-950","publisher":"Medieval Academy of America","publisher-place":"Cambridge Mass","pages":"865-895","container-title":"Speculum., 82.2007","author":[{"family":"McCormick","given":"Michael 1951-"}],"issued":{"raw":"2007"}}