Honisch et al (2012)
Also: Honisch et al 2012
The geological record of ocean acidification
Hönisch, B., Ridgwell, A., Schmidt, D. N., Thomas, E., Gibbs, S. J., Sluijs, A., ... & Williams, B. (2012). The geological record of ocean acidification. science, 335(6072), 1058-1063.
http://www.northeastern.edu/rieslab/Hoenisch_et_al_2012_Science_Geologic_history_of_ocean_acidification.pdf
DOI: 10.1126/science.1208277
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.