“Combinative Preconditioners of Modified Incomplete Cholesky Factorization and Sherman-Morrison-Woodbury Update for Self-Adjoint Elliptic Dirichlet-Periodic Boundary Value Problems” (2021) Journal of Computational Mathematics, 22(6), pp. 833–856. Available at: https://global-sci.com/index.php/JCM/article/view/11677 (Accessed: 6 December 2025).