VLASENKO, I. Yu. Topological Properties of Periodic Components of Structurally Stable Diffeomorphisms. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 9, p. 1190–1199, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4158. Acesso em: 17 apr. 2025.