PETRICHKOVICH, V. M. A criterion of diagonalizability of a pair of matrices over the ring of principal ideals by common row and separate column transformations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 49, n. 6, p. 860–862, 1997. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5074. Acesso em: 6 dec. 2025.