Lorius et al. (1990)
Also: Lorius et al. 1990
The ice-core record: climate sensitivity and future greenhouse warming
Lorius, C., Jouzel, J., Raynaud, D., Hansen, J. & Treut, H. Le (1990). The ice-core record: climate sensitivity and future greenhouse warming. Nature. 347(6289),139-145. Article
https://doi.org/10.1038/347139a0
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.