SHUNKOV , V. P. One sufficient sign of the existence of 2-full part in the group. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 6, p. 827–835, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8017. Acesso em: 5 dec. 2025.