IVANOV, A. F.; MAISTRENKO, Yu. L.; РОМАНЕНКО, О. To the bright memory of Oleksandr Mykolayovych Sharkovsky. Sixty years of the famous Sharkovsky’s theorem. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 76, n. 1, p. 3–4, 2024. DOI: 10.3842/umzh.v76i1.8138. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8138. Acesso em: 7 apr. 2025.