БЕЛУГА, Ю. М.; ЖИЛКОВА, А. А. Actual problems of definition of system of private law. Scientific works of Kyiv Aviation Institute. Series Law Journal "Air and Space Law", [S. l.], v. 1, n. 26, p. 85–89, 2013. DOI: 10.18372/2307-9061.26.4807. Disponível em: http://jrnl.kai.edu.ua/index.php/UV/article/view/4807. Acesso em: 14 jun. 2026.