DZHALIUK , N. S.; PETRYCHKOVYCH , V. M. Equivalence of matrices in the ring $M(n, R)$ and its subrings. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 73, n. 12, p. 1612–1618, 2021. DOI: 10.37863/umzh.v73i12.6858. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/6858. Acesso em: 27 apr. 2025.