The L2-Norm Error Estimate of Nonconforming Finite Element Method for the 2nd Order Elliptic Problem with the Lowest Regularity. Journal of Computational Mathematics, [S. l.], v. 18, n. 3, p. 277–282, 2000. Disponível em: https://staging.gsp.tricubic.dev/JCM/article/view/11365. Acesso em: 18 mar. 2026.