Santer et al. (2013)
Also: Santer et al. 2013
Human and natural influences on the changing thermal structure of the atmosphere.
Santer, B. D., Painter, J. F., Bonfils, C., Mears, C. A., Solomon, S., Wigley, T. M., ... & Wentz, F. J. (2013). Human and natural influences on the changing thermal structure of the atmosphere.Proceedings of the National Academy of Sciences, 110(43), 17235-17240. Link to paper
doi: 10.1073/pnas.1305332110
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.