МАТВІЙЧУК, А. В. THEORETICAL PROBLEMS OF RESEARCHING THE DUTIES OF THE STATE. Scientific works of National Aviation University. Series: Law Journal "Air and Space Law", [S. l.], v. 1, n. 46, p. 54–59, 2018. DOI: 10.18372/2307-9061.46.12724. Disponível em: https://jrnl.nau.edu.ua/index.php/UV/article/view/12724. Acesso em: 21 nov. 2024.