SENASHOV, V. I. Characterization of Groups with a Layer-Finite Periodic Part. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 3, p. 383–391, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4260. Acesso em: 5 dec. 2025.