SONG, Keyan; ZHOU, Wei. ON THE NUMBER OF CYCLIC SUBGROUPS IN FINITE GROUPS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 41, p. 593–596, 2019. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7086. Acesso em: 17 oct. 2026.