“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 19, no. 5 (October 2, 2001): 449–458. Accessed December 5, 2025. https://www.global-sci.com/index.php/JCM/article/view/11447.