Тоцький, Броніслав Артурович, and Зоряна Степанівна Черненко. “Implementation of the Principle of Proportionality in the Use of the Preamble”. Scientific works of Kyiv Aviation Institute. Series Law Journal "Air and Space Law" 1, no. 14 (May 27, 2010): 23–26. Accessed December 9, 2025. https://jrnl.nau.edu.ua/index.php/UV/article/view/7453.