8PAVLIS N K, HOLMES S A, KENYON S C ,et al. An Earth Gravitational Model to Degree 2160:EGM2008 [ C]//The 2008 General Assembly of the European Geo-sciences Union.Vienna, Austria: [ s.n. ] ,2008 : 13-18.
9HIRT C, GRUBER T, FEATHERSTONE W E. Evaluation of the First GOCE Static Gravity Field Models Using Ter- restrial Gravity, Vertical Deflections and EGM2008 Quasigeoid Heights [ J ]. Journal of Geodesy, 2011,85 (10) :723-740.
9Pavlis N K, Holmes S A, Kenyon S C,et al. An Earth Gravitational Model to Degree 2160: EGM2008[C]. The 2008 General Assembly of the European Geosciences Union, Vienna, Austria, 2008.
10Hirt C, Gruber T, Featherstone W E. Evaluation of the First GOCE Static Gravity Field Models Using Terrestrial Gravity, Vertical Deflections and EGM2008 Quasigeoid Heights[J]. Journal of Geodesy, 2011,85(10):723-740.