ONISHCHUK, V.A. On the locally nilpotent groups with a centralisator of the finite rank . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 11, p. 1511–1517, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8253. Acesso em: 5 dec. 2025.