YANG, Y.; LIU, S. A new characterization of sporadic Higman-Sims and Held groups. Eurasian Mathematical Journal, [S. l.], v. 5, n. 3, p. 102–116, 2014. Disponível em: https://emj.enu.kz/index.php/main/article/view/581. Acesso em: 31 oct. 2025.