@inproceedings{sgem2021s1067,
  title = {HIGH-RESOLUTION TOPOGRAPHIC DATA OF RIVER LANDSCAPES USING AERIAL PPK-UAV PHOTOGRAMMETRY: A CASE STUDY IN OGOSTA RIVER VALLEY, NORTHWESTERN BULGARIA},
  author = {Davis Dinkov and Atanas Kitev and Desislava Hristova},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Informatics, Geoinformatics and Remote Sensing},
  year = {2021},
  pages = {293-300},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2021/2.1/s10.67}
}