Троцюк, Ніна Валеріївна. “Copyright Protection by Professional Creative Unions”. Scientific works of Kyiv Aviation Institute. Series Law Journal "Air and Space Law" 2, no. 35 (June 10, 2015): 58–62. Accessed December 9, 2025. https://jrnl.nau.edu.ua/index.php/UV/article/view/8557.