1. Bajracharya, S., C. Kotsakis, M. G. Sideris, Geoid Determination Using Different Gravity Reduction Techniques, Presented in IAG meeting, Budapest, 2001.
2. Featherstone, W. E., J. F. Kirby, A. H. W. Kearsley, J. R. Gilliland, G. M. Johnston, J. Steed, R. Forsberg, and M. G. Sideris, The AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data, J. Geod., 75-5/6, 313–330, 2001.
3. Forsberg, R., Gravity field terrain effect computation by FFT, Bull. Geod., 59, 342–360, 1985.
4. Getech, South East Asia gravity project, Technical report, Getech, 1995.
5. Heiskanen, W. H. and H. Moritz, Physical Geodesy, Freeman, San Francisco, 1967.