SHAVAROVSKY , B. Z. On decomposability of matrix polynomials with coefficients of quasi-simple structure. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 12, p. 1716–1718, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8197. Acesso em: 5 dec. 2025.