ШИШКА, Роман Богданович. Characteristic of the contracts. Scientific works of Kyiv Aviation Institute. Series Law Journal "Air and Space Law", [S. l.], v. 4, n. 29, p. 119–125, 2013. DOI: 10.18372/2307-9061.29.6534. Disponível em: https://jrnl.kai.edu.ua/index.php/UV/article/view/6534. Acesso em: 21 oct. 2026.