GAO, B.; MIAO, L.; TANG, J. Some conditions for cyclic chief factors of finite groups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 68, n. 12, p. 1718–1722, 2016. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1957. Acesso em: 5 dec. 2025.