Ramillien, G., Bouhours, S., Lombard, A., Cazenave, A., Flechtner, F., & Schmidt, R. (2008). Land water storage contribution to sea level from GRACE geoid data over 2003 2006. Global and Planetary Change, 60, 381–392. http://doi.org/10.1016/j.gloplacha.2007.04.002 (Original work published February 2008)