DASHKOVA, O. Yu. Groups of finite non-Abelian sectional rank. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 49, n. 10, p. 1324–1331, 1997. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5130. Acesso em: 7 apr. 2025.