Discrete Approximations for Singularly Perturbed Boundary Value Problems with Parabolic Layers, III. Journal of Computational Mathematics, [S. l.], v. 14, n. 3, p. 273–290, 1996. Disponível em: https://staging.gsp.tricubic.dev/JCM/article/view/11217. Acesso em: 18 mar. 2026.