Multigrid Algorithm for the Coupling System of Natural Boundary Element Method and Finite Element Method for Unbounded Domain Problems. Journal of Computational Mathematics, [S. l.], v. 25, n. 1, p. 13–26, 2018. Disponível em: https://global-sci.com/JCM/article/view/11805. Acesso em: 4 mar. 2026.