The Convergence of Multigrid Methods for Nonsymmetric Elliptic Variational Inequalities. Journal of Computational Mathematics, [S. l.], v. 11, n. 1, p. 73–76, 2018. Disponível em: https://global-sci.com/index.php/JCM/article/view/11089. Acesso em: 6 dec. 2025.