Hameliak, I. P., A. V. Nikolaychuk, and H. V. Zhurba. “Strengthening the Natural Base at Elongation of Artificial Runway at Danylo Halytskyi International Airport «Lviv»”. Science and Transport Progress , no. 42 (December 25, 2012): 225–231. Accessed May 5, 2024. https://stp.ust.edu.ua/article/view/9401.