1. Ågren J., 2004. The analytical continuation bias in the geoid determination using potential coefficients and terrestrial gravity data. J. Geodesy, 78, 314–332.
2. Alberts B. and Klees R., 2004. A comparison of methods for the inversion of airborne gravity data. J. Geodesy, 78, 55–65.
3. Ardalan A.A., 2000. High-Resolution Regional Geoid Computation in the World Geodetic Datum 2000, Based upon Collocation of Linearized Observational Functionals of the Type GPS, Gravity Potential and Gravity Intensity. Ph.D. Thesis, Department of Geodesy and Geoinformatics, Stuttgart University, Stuttgart, Germany.
4. Ardalan A.A. and Grafarend E.W., 2004. High-resolution regional geoid computation without applying Stokes’s formula: a case study of the Iranian geoid. J. Geodesy, 78, 138–156.
5. Ardalan A.A., Karimi R. and Poutanen M., 2010a. A bias-free geodetic boundary-value problem approach to height datum unification. J. Geodesy, 84, 123–134.