SENASHOV, V. I. Characterizations of the Shunkov groups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 60, n. 8, p. 1110–1118, 2008. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3228. Acesso em: 5 dec. 2025.