A Locally Mass-Conservative Enriched Petrov-Galerkin Method Without Penalty for the Darcy Flow in Porous Media. Communications in Computational Physics, [S. l.], v. 39, n. 4, p. 1199–1230, 2026. DOI: 10.4208/cicp.OA-2023-0321. Disponível em: https://global-sci.com/index.php/cicp/article/view/23619. Acesso em: 26 feb. 2026.