1. Bursa, M.: 1992, Parameters of common relevance of Astronomy, Geodesy and Geodynamics, Geodetic bulletin,66, (The Geodesist’s Handbook—Tscherning C.C. ed.)
2. Bureau des Longitudes: 1984, Encyclopédie Scientifique de l’Univers—La Terre, les eaux, l’atmosphère, Gauthier Villars.
3. Dziewonsky, A.M. and Anderson, D.L.: 1981, Preliminary reference Earth model, Physics of the Earth and planetary interiors,25, 297–356.
4. Arias, E.F., Chariot, P., Feissel, M. and Lestrade, J.F.: 1995, The extragalactic reference system of the International Earth Rotation Service, I.C.R.S., Astron. and Astrophys., 303, 604.
5. Marchai, C.; 1996, Earth’s polar displacements of large amplitude: a possible mechanism, Bulletin du Muséum d’Histoire Naturelle,—Paris—4è sŕie—Section C—Tome 18—N°2-3.