Bradley, R.S., Briffa, K.R., Cole, J., Hughes, M.K. and Osborn, T.J., 2003
“The climate of the last millennium.”
In: Paleoclimate, Global Change and the Future (Eds. K.D. Alverson, R.S. Bradley and Thomas F. Pedersen),Global Change - The IGBP series (PAGES), pp.105-141 Springer-Verlag
(keywords: climate millennium historical change global warming trends)