Kaser et al. (2004)
Also: Kaser et al. 2004
Modern glacier retreat on Kilimanjaro as evidence of climate change: observations and facts
Kaser, G., Hardy, D.R., Mölg, T., Bradley, R.S. & Hyera, T.M. (2004). Modern glacier retreat on Kilimanjaro as evidence of climate change: observations and facts. International Journal of Climatology. 24(3),329-339. PDF
https://doi.org/10.1002/joc.1008
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.