Hobe, Stephan. “THE EUROPEAN AVIATION POST-COVID-19 SCENARIO: OBSERVATIONS AND PERSPECTIVES”. Scientific works of National Aviation University. Series: Law Journal "Air and Space Law" 3, no. 56 (September 30, 2020): 40–48. Accessed November 28, 2024. https://jrnl.nau.edu.ua/index.php/UV/article/view/14889.