1- BGI (1992) BGI Bulletin d' Information Vol 70,71.
2- Forsberg, R. (1984) A Study of Terrain Reductions, Density Anomalies and Geophysical Inversion Methods in Gravity Fiels Modelling. Rep 355, Dept Geod Sci, Ohio State Univ, Columbus
3- Forsberg, R. (2001) Development of a Nordic cm-geoid-with basics of geoid determination. In:
Harsson BG (ed.) Lecture notes for autumn school organised by the Nordic Geodetic Commission. held in Fevik, Norway , 28 Aug, - 2 Sept. 2000, statens kartverk. HØnefoss , Norway.
4- Heiskanen, W.A., Moritz, H. (1967) Physical Geodesy . W H Freeman and Co., New York , London and San Francisco.
5- Kiamehr, R. (1997) Iranian geoid problem and recommendation , 1997, 4th International Conferences of civil engineering , Sharif University of Technology , Tehran, Iran.
6- Kiamehr, R. (2001) Potential of Iranian geoid for GPS / Leveling, National Cartographic Center of Iran Geomatics 80 conferences, Tehran , Iran.
7- Kiamehr , R., 2003a, Comparison relative accuracy of EGM96 and Iranian gravimetric geoid, 6Th International conference of Civil Eng., Isfahan University of Technology, Iran.
8- Kiamehr, R., 2003b, Discussion about relative accuracy of IFAG geoid, J. Sepehr Iranian National Geography Organization (NGO), 42: 13-18.
9- Kiamehr, R., 2004, The Relative Accuracies of Recent Satellite Gravimetric Models in Iran, IAG International Symposium Gravity, Geoid and Space Missions - GGSM2004, Porto , Portugal.
10- Kiamehr, R. and Sjöberg LE (2004) The qualities of Iranian gravimetric geoid models versus recent gravity field missions, Submitted J. Studia Geophysica et Geodaetica.
11- Kiamehr, R. and Sjöberg, L.E.(2005) Effect of the SRTM global DEM in the determination of a high-resolution geoid model of Iran , Submitted J.Geodesy.
12- Kiamehr, R. (2005) Hybrid precise gravimetric geoid model for Iran based on recent GRACE and SRTM data and the Least Squares Modification of Stoke Formula, submitted to J.Geodesy.
13- Lemoine , F.G., Kenyon , S.C., Factor , J.K., Trimmer R.G., Pavlis, N.K., Chinn, D.S., Cox C.M., Klosko, S.B., Luthcke, S.B., Torrence , M.H., Wang Y.M., Williamson , R.G., Pavlis, E.C., Rapp, R.H., Olson, T.R. (1998) The Development of the Joint NASA GSFC and NIMA Geopotential Model EGM96. NASA Goddard Space Flight Center , Greenbelt , Maryland, 20771 USA.
14- Moritz, H. (1992) Geodetic Reference System 1980, Bull Geod , 66: 187 - 192.
15- Sandwell, D.T., Smith, W.H.F (1997) Marine gravity anomaly from Geosat and ERS 1 satellite altimetry , Journal of Geophysical Research , v. 102, No. B5 , p. 10039-10054.
16- Sjöberg , L.E. (2003) A solution to the downward continuation effect on the geoid determined by Sroke's formula. J Geod 77: 94-100.
17- Tscherning , C.C., Rapp, R.H. (1974) Closed Co variance Expressions for Gravity Anomalies , Geoid Undulations, and Deflections of the Vertical Implied by Anomaly Degree - Variance Models. Rep of the Dept of Geodetic Sci and Surv No 208 The Ohio State Univ, Columbus, Ohio.
18- Vermeer, M. (1995) Mass point geopotential modelling using fast spectral techniques ; historical overview , toolbox description, numerical experiment, manuscripta geodaetica, 20: 362-378.
19- Agren, J. (2004) Regional geoid determination methods for the era of satellite gravimetry , Ph.D. thesis , Royal Institute of Technology, Stockholm, Sweden.