Optimal Interior and Local Error Estimates of a Recovered Gradient of Linear Elements on Nonuniform Triangulations. Journal of Computational Mathematics, [S. l.], v. 14, n. 4, p. 345–362, 2021. Disponível em: https://gsp.tricubic.dev/JCM/article/view/11223. Acesso em: 14 mar. 2026.