Japins, Ivars, Sergejs Kodors, and Sandra Ežmale. “INTEGRATION OF UNMANNED AERIAL VEHICLES FLYING BEYOND VISUAL LINE OF SIGHT INTO AIR TRAFFIC”. HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, no. 24 (April 22, 2020): 53–58. Accessed December 22, 2024. https://journals.rta.lv/index.php/HET/article/view/6750.