[1]
“Extrapolation Cascadic Multigrid Method for Cell-Centered FV Discretization of Diffusion Equations with Strongly Discontinuous and Anisotropic Coefficients”, Commun. Comput. Phys., vol. 31, no. 5, pp. 1561–1584, May 2022, doi: 10.4208/cicp.OA-2021-0185.