BOVDI, V. A.; KONOVALOV, A. V. Integral group ring of Rudvalis simple group. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 1, p. 3–13, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2996. Acesso em: 6 dec. 2025.