Mitchell (1961)
Also: Mitchell 1961
Recent secular changes of global temperature
Mitchell, J. M. (1961). Recent secular changes of global temperature. Annals of the New York Academy of Sciences, 95(1), 235-250. Link to abstract
DOI: 10.1111/j.1749-6632.1961.tb50036.x
References
All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.