CHERNIKOV, N. S. On Socle and Semisimple Groups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 6, p. 866–880, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4123. Acesso em: 7 apr. 2025.