PASQUEL CARBAJAL, Francisco. Tensor de Riemann-Christoffel. Pro Mathematica, [S. l.], v. 24, n. 47-48, p. 41–50, 2010. Disponível em: https://revistas.pucp.edu.pe/index.php/promathematica/article/view/10273. Acesso em: 16 dic. 2025.