BILYAVS’KA, S. I.; ZABAVSKII, B. V. Singularities of the structure of two-sided ideals of a domain of elementary divisors. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 62, n. 6, p. 854 – 856, 2010. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2916. Acesso em: 5 dec. 2025.