6th International Symposium "Geodesy and Physics of the Earth" proceedings: part 2, gravity field variations - Potsdam Central institute for physics of the earth 1989 - ii+325p. - Veröffentlichungen des Zentralinstituts für Physik der Erde . Subjects--Topical Terms: GeodesyGravity Field Variations Universal Decimal Class. No.: 550.3 / ASGDR