MAZKO, A. G. Stability Criteria and Localization of the Matrix Spectrum in Terms of Trace Functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 10, p. 1379–1386, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2229. Acesso em: 5 dec. 2025.