@article{moreira_oliveira_oliveira_figueiredo_filho_duarte_2021,  title={High-resolution semi-automatic mapping based on an Unmanned Aerial Vehicle (UAV) to capture geological structures},  volume={93},  ISSN={0001-3765},  url={https://doi.org/10.1590/0001-3765202120191416},  DOI={10.1590/0001-3765202120191416},  number={3},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={MOREIRA, JULIO A. and OLIVEIRA, FABRICIA B. DE and OLIVEIRA, CARLOS H.R. DE and FIGUEIREDO, ALVARO C. and FILHO, MAURO C.L. and DUARTE, EDUARDO B.},  year={2021},  pages={e20191416} }