ZUBEI, E. V.; KNYAGINA, V. N.; MONAKHOV, V. S. On the solvability of a finite group with $S$-seminormal Schmidt subgroups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 11, p. 1511–1518, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1654. Acesso em: 5 dec. 2025.