Schuster 2009
Schuster, U., Watson, A. J., Bates, N., Corbiere, A., Gonzalez-Davila, M., Metzl, N., Pierrot, D., Santana-Casiano, J. M., 2009. Trends in North Atlantic sea surface fCO2 from 1990 to 2006. Deep Sea Research Vol II, 56, 620-629. http://dx.doi.org/10.1016/j.dsr2.2008.12.011