A Shift-Splitting Preconditioner for Non-Hermitian Positive Definite Matrices. Journal of Computational Mathematics, [S. l.], v. 24, n. 4, p. 539–552, 2006. Disponível em: https://global-sci.com/index.php/JCM/article/view/11784. Acesso em: 5 dec. 2025.