Reference
- Courant, R. & Hilbert, D. 1953. Methods of mathematical physics, Vol. I. Interscience Publishers, New York.
- Erdélyi, A., Magnus, W., Oberhettinger, F. & Tricomi, F. G. 1953. Higher transcendental functions, Vol. II. McGraw-Hill, New York.
- Hobson, E. W. 1931. The theory of spherical and ellipsoidal harmonics. Cambridge.
- Hönl, H. 1934. Vber em n Additionstheorem der Kugelfunktionen und seine Anwendung auf die Richtungsquantisierung der Atome. Zeitschrift für Physik 89, 244–53.
- Jeffreys, B. 1965. Transformation of tesseral harmonics under rotation. Geophysical Journal 10, 141–45.
- Joos, G. 1967. Theoretical physics, 3rd ed. Blackie & Son, London and Glasgow.
- Kellogg, O. D. 1929. Foundations of potential theory. New York. (Dover reprint, 1953.) Lundquist, C. A. & Veis, G. (eds.) 1966. Geodetic parameters for a 1966 Smithsonian Institution Standard Earth. S.A.O. Spec. Report 200.
- Michael, W. H., Jr. 1967. Physical properties of the moon as determined from Lunar Orbiter data. Paper presented at the 14th IUGG-General Assembly, Lucerne.
- Molodenskii, M. S., Eremeev, V. F. & Yurkina, M. I. 1962. Methods for study of the external gravitational field and figure of the earth. Israel Program for Scientific Translations, Jerusalem.
- Robin, L. 1957. Fonctions sphériques de Legendre et fonctions sphéroidales, tome I. Gauthier-Villars, Paris.
- Satô, Y. 1950. Transformations of wave-functions related to the transformations of coordinate systems. Bulletin of the Earthquake Research Institute, Tokyo University, 28, 1-22 and 175-217.
- Schmidt, A. 1899. Formeln zur Transformation der Kugelfunktionen bei linearer Anderung des Koordinatensystems. Zeitschrift far Mathematik und Physik 44, 327–38.