Novlyanskaya, Inna Olegovna, and Rafael Alexandrovich Kascheev. “Comparison of the Modern Earth”™s Gravity Field Models”. Revista Publicando 4, no. 13 (2) (December 5, 2017): 1027–1037. Accessed January 22, 2025. https://revistapublicando.org/revista/index.php/crv/article/view/1032.