ROMANIV, A. M.; SHCHEDRIK, V. P. Greatest common divisor of matrices one of which is a disappear matrix. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 3, p. 425–430, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2145. Acesso em: 5 dec. 2025.