Kharchenko V, Kuzmenko N. UNMANNED AERIAL VEHICLE COLLISION AVOIDANCE USING DIGITAL ELEVATION MODEL. Proceedings of National Aviation University [Internet]. 2013 Apr. 4 [cited 2024 Nov. 22];54(1):21-5. Available from: https://jrnl.nau.edu.ua/index.php/visnik/article/view/3858