“An Improved Two-Grid Technique for the Nonlinear Time-Fractional Parabolic Equation Based on the Block-Centered Finite Difference Method”. Journal of Computational Mathematics 40, no. 3 (October 6, 2022): 453–471. Accessed December 5, 2025. https://www.global-sci.com/index.php/JCM/article/view/12495.