HE, Li-Guan; CHEN, Gui-Yun; XU, Hai-Jing. A NEW CHARACTERIZATION OF SPORADIC SIMPLE GROUPS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 30, p. 373–392, 2013. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6068. Acesso em: 18 jul. 2026.