Mishchenko В. I. On isomorphically factorizable groups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 23, n. 6, p. 788–792, 1971. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8628. Acesso em: 6 dec. 2025.