ХОРТЮК, О. В. Contents of a trademark. Scientific works of Kyiv Aviation Institute. Series Law Journal "Air and Space Law", [S. l.], v. 3, n. 12, p. 75–79, 2010. DOI: 10.18372/2307-9061.12.8844. Disponível em: http://jrnl.kai.edu.ua/index.php/UV/article/view/8844. Acesso em: 19 apr. 2026.