IVANENKO, N. L. Characteristic subgroups of the Jonquere group over a field of characteristic zero. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 47, n. 1, p. 111–113, 1995. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5389. Acesso em: 5 dec. 2025.