Sigman et al. (2010)
Also: Sigman et al. 2010
The polar ocean and glacial cycles in atmospheric CO2 concentration
Sigman, D.M., Hain, M.P. & Haug, G.H. (2010). The polar ocean and glacial cycles in atmospheric CO2 concentration. Nature. 466(7302),47-55. Article
https://doi.org/10.1038/nature09149
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.