Lamsters, Kristaps, Jānis Karušs, Māris Krievāns, and Jurijs Ješkins. “APPLICATION OF UNMANNED AERIAL VEHICLES FOR GLACIER RESEARCH IN THE ARCTIC AND ANTARCTIC”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 20, 2019): 131–135. Accessed December 22, 2024. https://journals23.rta.lv/index.php/ETR/article/view/4130.