TANG, Xingzheng; LIU, Shitian. Finite groups whose sums of irreducible character degrees of all proper subgroups are large. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 54, p. 130–137, 2026. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/5648. Acesso em: 6 jun. 2026.