ZOU, Limin; JIANG, Youyi. BOUNDS FOR THE EIGENVALUES OF MATRICES. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 32, p. 519–524, 2014. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6177. Acesso em: 26 jul. 2026.