“Extrapolation Cascadic Multigrid Method for Cell-Centered FV Discretization of Diffusion Equations With Strongly Discontinuous and Anisotropic Coefficients”. Communications in Computational Physics 31, no. 5 (May 6, 2022): 1561–1584. Accessed December 6, 2025. https://global-sci.com/index.php/cicp/article/view/7074.