RAM NIVAS, SURENDRA YADAV. Invariant Submanifolds of a Manifold Admitting F(a1,a2,a3,.........an) - Structure. Journal of International Academy of Physical Sciences, [S. l.], v. 12, n. 1-4, p. 111–118, 2008. Disponível em: https://www.iaps.org.in/journal/index.php/journaliaps/article/view/846. Acesso em: 14 may. 2025.