Frohlich & Lean (1998)
Also: Frohlich & Lean 1998, Froehlich & Lean 1998, Froehlich & Lean (1998), Frohlich 1998
The Sun's total irradiance: Cycles, trends and related climate change uncertainties since 1976
Fröhlich, C., & Lean, J. (1998). The Sun's total irradiance: Cycles, trends and related climate change uncertainties since 1976. Geophysical Research Letters, 25(23), 4377-4380. Link to PDF
DOI: 10.1029/1998GL900157
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.