1. Bjerhammar A, Svensson L (1983) On the geodetic boundary-value problem for a fixed boundary surface - satellite approach. Bull Geod 57:382–393
2. Gilbarg D, Trudinger NS (1983) Elliptic partial differential equations of second order. Springer, Berlin
3. Grafarend EW (1989) The geoid and the gravimetric boundary-value problem. Rep 18 Dept Geod. The Royal Institute of Technology, Stockholm
4. Heiskanen WA, Moritz H (1967) Physical geodesy. W.H. Freeman and Company, San Francisco
5. Holota P (1985) A new approach to iteration solutions in solving geodetic boundary value problems for real topography. In: Proc. 5th Int. Symp. Geod. and Phys. of the Earth, GDR, Magdeburg, Sept. 23rd–29th, 1984, Part II. Veroff. d. Zentr. Inst. f. Phys. d. Erde, Nr. 81, Teil II, pp 4–15