@inproceedings{sgem2021s20014,
  title = {DETERMINATION OF THE COASTAL ZONE OF DANUBE RIVER IN BULGARIA},
  author = {Georgi Zhelezov and Velimira Stoyanova},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Ecology, Economics, Education and Legislation},
  year = {2021},
  pages = {51-58},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2021/5.1/s20.014}
}