Marin Silviu Nan. "RESEARCH ON THE USE DRONES FOR MONITORING AND RESOURCES VALORIFICATION IN THE EXTRACTIVE INDUSTRY." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining (2019): 1061-1068. https://doi.org/10.5593/sgem2019/1.2/s06.135