Чабан, Валентин Павлович. “Administrative Legal Act and Administrative Agreement: Legal Characteristic”. Scientific works of National Aviation University. Series: Law Journal "Air and Space Law" 2, no. 35 (June 10, 2015): 63–67. Accessed May 2, 2024. https://jrnl.nau.edu.ua/index.php/UV/article/view/8558.