1Neil F. Seeing with Gravity[J].New Scientist, 1996,151(2047):24~26.
2Guo Y G, Huang D L, Fang Y Y,et al. Transportable gravimeter for the absolute determination of gravity[J],Natl. Bur. Stds.(USA).Spec.Publ.,1984,617:419~421.
3Guo Y G, Huang D L, Fang Y Y,et al. A transportable laser interferometry absolute gravimeter type NIM-II[J],Acta Geophysics Sinica,1988,31(1):89~100.
4Balmino G, F Perosanz, R Rummel, et al. European Views on Dedicated Gravity Field Missions:GRACE and GOCE[R],1988,SD-MAG-REP-CON-001.