Katarzyna Sobolewska-Mikulska. "THE USE OF UAVS FOR REAL ESTATE VALIDATION." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing, 2017, pp. 721-726. https://doi.org/10.5593/sgem2017/22/s09.091