Two-Grid Discretization Schemes of the Nonconforming FEM for Eigenvalue Problems. Journal of Computational Mathematics, [S. l.], v. 27, n. 6, p. 748–763, 2021. DOI: 10.4208//jcm.2009.09-m2876. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/11963. Acesso em: 5 dec. 2025.