CAPUTO, M.; PIERI, L. The normal gravity formula and the polar flattening according to geodetic reference system 1967. Annals of Geophysics, [S. l.], v. 21, n. 1, p. 123–149, 1968. DOI: 10.4401/ag-5061. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5061. Acesso em: 7 jul. 2022.