SUN, J.; YU, H. A note on $\mathcal{M}$-normal embedded subgroups of finite groups. MATHEMATICA SCANDINAVICA, [S. l.], v. 129, n. 3, 2023. DOI: 10.7146/math.scand.a-137337. Disponível em: https://www.mscand.dk/article/view/137337. Acesso em: 3 jul. 2024.