Kapica, Roman. “DOCUMENTATION OF LANDSLIDES AND INACCESSIBLE PARTS OF A MINE USING AN UNMANNED UAV SYSTEM AND METHODS OF DIGITAL TERRESTRIAL PHOTOGRAMMETRY”. GeoScience Engineering 61, no. 3 (October 21, 2015): 8–19. Accessed May 5, 2024. http://geoscience.cz/ojs/index.php/GSE/article/view/87.