LIU, Shitian; ZHANG, Runshi. On injectors of finite groups. Armenian Journal of Mathematics, Yerevan, Armenia, v. 3, n. 1, p. 14–21, 2010. Disponível em: http://test.armjmath.sci.am/index.php/ajm/article/view/66. Acesso em: 9 may. 2026.