Citation: Rs. Nerem et al., GRAVITY-FIELD DETERMINATION AND CHARACTERISTICS - RETROSPECTIVE AND PROSPECTIVE, J GEO R-SOL, 100(B8), 1995, pp. 15053-15074
Citation: C. Jekeli, HARDYS MULTIQUADRIC-BIHARMONIC METHOD FOR GRAVITY-FIELD PREDICTIONS, Computers & mathematics with applications, 28(7), 1994, pp. 43-46