HVOŽDARA, Milan. Groundwater flow anomalies due to an oblate spheroid. Contributions to Geophysics and Geodesy, [S. l.], v. 38, n. 1, p. 61–77, 2008. Disponível em: https://journals.savba.sk/index.php/cgg/article/view/5077. Acesso em: 4 feb. 2026.