TRAORE, M.; TAŞTAN, H. M.; BLAGA, A. M. Some characterizations of quasi-Einstein and twisted product manifolds. International Journal of Maps in Mathematics, [S. l.], v. 6, n. 1, p. 54–66, 2023. Disponível em: http://journalmim.com/index.php/journalMIM/article/view/129. Acesso em: 29 apr. 2024.