Wigley and Santer (2012)
Also: Wigley and Santer 2012
A probabilistic quantification of the anthropogenic component of twentieth century global warming
Wigley, T. M. L., & Santer, B. D. (2013). A probabilistic quantification of the anthropogenic component of twentieth century global warming. Climate Dynamics, 40(5-6), 1087-1102. Link to PDF
DOI: 10.1007/s00382-012-1585-8
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.