HASEEB, A.; PRASAD, R. Certain curvature conditions in Lorentzian para-Sasakian manifolds. International Journal of Maps in Mathematics, [S. l.], v. 3, n. 2, p. 85–99, 2020. Disponível em: http://journalmim.com/index.php/journalMIM/article/view/61. Acesso em: 3 may. 2024.