On the $L_\infty$ Convergence and the Extrapolation Method of a Difference Scheme for Nonlocal Parabolic Equation with Natural Boundary Conditions. Journal of Computational Mathematics, [S. l.], v. 19, n. 5, p. 449–458, 2001. Disponível em: https://global-sci.com/index.php/JCM/article/view/11447. Acesso em: 6 dec. 2025.