A comparison of global estimates of marine primary production from ocean color - Carr, M.; Friedrichs, M.; Schmeltz, M.; Noguchi, A.; Antoine, David; Arrigo, K.; Asanuma, I.; Aumont, O.; Barber, R.; Behrenfeld, M.; Bidigare, R.; Buitenhuis, E.; et al. (Elsevier, 2006)