SENASHOV, V. I. Sufficient conditions for the almost layer finiteness of groups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 4, p. 472–485, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4633. Acesso em: 6 dec. 2025.