Кравченко, Я.О., В.В. Краковський, О.О. Вовк, and Н.А. Шевчук. “Ecological Problems of Technosphere and Ways to Overcome Them”. Proceedings of National Aviation University 38, no. 1 (January 1, 2009): 74–77. Accessed May 21, 2024. https://jrnl.nau.edu.ua/index.php/visnik/article/view/1666.