V. M. Prokip, “On the factorization of polynomial matrices over the domain of principal ideals”, Ukr. Mat. Zhurn., vol. 48, no. 10, pp. 1435–1439, Oct. 1996, Accessed: Feb. 17, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5230