Leakey et al. (2009)
Also: Leakey et al. 2009
Elevated CO2 effects on plant carbon, nitrogen, and water relations: six important lessons from FACE
Leakey, A. D., Ainsworth, E. A., Bernacchi, C. J., Rogers, A., Long, S. P., & Ort, D. R. (2009). Elevated CO2 effects on plant carbon, nitrogen, and water relations: six important lessons from FACE. Journal of experimental botany, 60(10), 2859-2876. Link to paper
DOI: https://doi.org/10.1093/jxb/erp096
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.