MANDAL, K. β-Change of Riemannian Space and Special Cases of one-form β. Journal of Nepal Mathematical Society, [S. l.], v. 1, n. 1, p. 30–37, 2018. DOI: 10.3126/jnms.v1i1.42172. Disponível em: https://www.nepjol.info/index.php/jnms/article/view/42172. Acesso em: 24 apr. 2024.