A. G. Mazko, “Stability Criteria and Localization of the Matrix Spectrum in Terms of Trace Functions”, Ukr. Mat. Zhurn., vol. 66, no. 10, pp. 1379–1386, Oct. 2014, Accessed: Dec. 06, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2229