Boelen, P., van de Poll, W.H., van der Strate, H.J., Neven, I.A., Beardall, J. and Buma, A.G.J. 2011. Neither elevated nor reduced CO2 affects the photophysiological performance of the marine Antarctic diatom Chaetoceros brevis. Journal of Experimental Marine Biology and Ecology 406: 38-45.