Le Quéré, C., Rödenbeck, C., Buitenhuis, E. T., Conway, T. J., Langenfelds, R., Gomez, A., Labuschagne, C., Ramonet, M., Nakazawa, T., Metzl, N., Gillett, N. P., & Heimann, M. (2008). Response to comments on "saturation of the southern ocean CO2 sink due to recent climate change". Science, 319(5863), 570c. doi:10.1126/science.1147315.