@article{Ozcan2021_526370, author={Orkan Ozcan and Bülent Bayram and Semih Sami Akay and Tolga Gorum and Fusun Balik Sanli}, title={Assessing the spatial accuracy of UAV-derived products based on variation of flight altitudes}, year={2021}, journal={Turkish Journal of Engineering}, issn={2587-1366}, volume={5}, number={1}, url={http://search/yayin/detay/526370} }