The Multigrid Method of Nonconforming Finite Elements for Solving the Biharmonic Equation. Journal of Computational Mathematics, [S. l.], v. 12, n. 1, p. 61–70, 1994. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/11127. Acesso em: 5 dec. 2025.