%0 Journal Article %T GEOID99 and G99SSS: 1-arc-minute geoid models for the United States %A Smith, D. A. %A Roman, D. R. %J Journal of Geodesy %V 75 %N 10 %P 469-490 %@ 0949-7714 %D 2001-10-01 %I Springer-Verlag %~ DeepDyve