Hoffert & Covey (1992)
Also: Hoffert & Covey 1992
Deriving global climate sensitivity from palaeoclimate reconstructions
Hoffert, M. I., & Covey, C. (1992). Deriving global climate sensitivity from palaeoclimate reconstructions. Nature, 360(6404), 573-576. Link to abstract
doi:10.1038/360573a0
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.