ГУСАР, О. А. Aviation personnel: update of the concepts. Scientific works of National Aviation University. Series: Law Journal "Air and Space Law", [S. l.], v. 1, n. 30, p. 9–15, 2014. DOI: 10.18372/2307-9061.30.8486. Disponível em: https://jrnl.nau.edu.ua/index.php/UV/article/view/8486. Acesso em: 2 feb. 2025.