SUSHCH, V. Green Function for a Two-Dimensional Discrete Laplace-Beltrami Operator. CUBO, A Mathematical Journal, [S. l.], v. 10, n. 2, p. 47–59, 2008. Disponível em: https://cubo.ufro.cl/ojs/index.php/cubo/article/view/1515. Acesso em: 16 may. 2024.