NOVLYANSKAYA, Inna Olegovna; KASCHEEV, Rafael Alexandrovich. Comparison of the Modern Earth”™s Gravity Field Models. Revista Publicando, "Quito, EC", v. 4, n. 13 (2), p. 1027–1037, 2017. Disponível em: https://revistapublicando.org/revista/index.php/crv/article/view/1032. Acesso em: 22 jan. 2025.