VERMA, G. . On a Compendious Structure on a Differentiable Manifold . Journal of Qassim University for Science, [S. l.], v. 7, n. 2, p. 155–168, 2014. Disponível em: https://jnsm.qu.edu.sa/index.php/jnm/article/view/1767. Acesso em: 20 sep. 2024.