СОПІЛКО, І. М. Air and Space Law: discussion questions. Scientific works of Kyiv Aviation Institute. Series Law Journal "Air and Space Law", [S. l.], v. 4, n. 37, p. 167–171, 2015. DOI: 10.18372/2307-9061.37.9851. Disponível em: http://jrnl.kai.edu.ua/index.php/UV/article/view/9851. Acesso em: 18 apr. 2026.