Bradley, R.S., Braziunas, T. and 13 others (including Wigley, T.M.L.), 1991
“Global Change: the Last 2000 Years.”
Working Group Report in: Global Changes of the Past (Ed. R.S. Bradley), pp.11-24 UCAR/Office for Interdisciplinary Earth Studies, Boulder, CO, USA.
(keywords: global climate change historical records statistics impacts)