1. The need for global, satellite-based observations of terrestrial surface waters
2. A Manual for EOF and SVD Analyses of Climate Data;Björnsson,1997
3. Potential Theory in Gravity and Magnetic Applications;Blakely,1995
4. Stabilization of global gravity field solutions by combining satellite gradiometry and airborne gravimetry;Bouman;DEOS Prog. Lett.,1998
5. Eanes, R., Bettadpur, S., 1995. The CSR 3.0 global ocean tide model. Technical memorandum CSR-TM-95-06, Center for Space Research.