Annual variations in water storage and precipitation in the Amazon Basin. Bounding sink terms in the terrestrial hydrological balance using GRACE satellite gravity datav. 829–13
Crowley, John W., Mitrovica, Jerry X., Bailey, Richard C., Tamisiea, Mark E., and Davis, James L. 2008. "Annual variations in water storage and precipitation in the Amazon Basin. Bounding sink terms in the terrestrial hydrological balance using GRACE satellite gravity data." Journal of Geodesy, 82 9–13.