RUSSEV, A. V. On conjugacy in groups of finite-state automorphisms of rooted trees. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 60, n. 10, p. 1357–1366, 2008. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3250. Acesso em: 27 apr. 2025.