Computing a Nearest P-Symmetric Nonnegative Definite Matrix Under Linear Restriction. Journal of Computational Mathematics, [S. l.], v. 22, n. 5, p. 671–680, 2004. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/11664. Acesso em: 27 feb. 2026.