BANAŚ, Krzysztof; WHEELER, Mary F. Preconditioning GMRES for discontinuous Galerkin approximations. Computer Assisted Methods in Engineering and Science, [S. l.], v. 11, n. 1, p. 47–62, 2023. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/1043. Acesso em: 12 jan. 2025.