AZARANG, A.; KARAMZADEH, O. A. S.; NAMAZI, A. Hereditary Properties between a Ring and its Maximal Subrings. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 7, p. 883–893, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2475. Acesso em: 6 dec. 2025.