$L^\infty$ Error Estimates of Nonconforming Finite Elements for the Biharmonic Equation. Journal of Computational Mathematics, [S. l.], v. 11, n. 3, p. 276–288, 1993. Disponível em: https://gsp.tricubic.dev/JCM/article/view/11110. Acesso em: 14 mar. 2026.