CANFES, E. Ö.; ÖZDEĞER, A. A characterization of totally umbilical hypersurfaces of a space form by geodesic mapping. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 4, p. 583–587, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2441. Acesso em: 17 apr. 2025.