Observed climate variability and change of relevance to the biosphere
David R. Easterling, Thomas R. Karl, Kevin P. Gallo, David A. Robinson, Kevin E Trenberth, Aiguo Dai (2000). Observed climate variability and change of relevance to the biosphere. Journal of Geophysical Research Atmospheres, 105(D15), pp. 20101-20114, DOI: 10.1029/2000jd900166.
