An Improved Eigenvalue Perturbation Bound on a Nonnormal Matrix and Its Application in Robust Stability Analysis. Journal of Computational Mathematics, [S. l.], v. 11, n. 1, p. 1–6, 2018. Disponível em: https://global-sci.com/JCM/article/view/11084. Acesso em: 4 mar. 2026.