Wilmking & Singh (2008)
Also: Wilmking & Singh 2008
Eliminating the divergence problem; at Alaska's northern treeline
Wilmking, M., Singh, J. (2008). Eliminating the "divergence problem" at Alaska's northern treeline. PDF
https://doi.org/10.5194/cpd-4-741-2008
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.