PHOTOSIEVING: DRONE IMAGING FOR GRAIN SIZE ANALYSIS OF SEDIMENTS: PHOTOSIEVING: SNÍMKOVANIE POMOCOU DRONOV PRE ANALÝZU VEĽKOSTI ZŔN SEDIMENTOV. geok. Published online January 21, 2025:38. Accessed September 14, 2025. https://journals.savba.sk/index.php/GeoKARTO2024/article/view/3056