B. Z. Shavarovskyy, “Decomposability of matrix polynomials with commuting coefficients into a product of linear factors”, Ukr. Mat. Zhurn., vol. 62, no. 8, pp. 1114–1123, Aug. 2010, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2941