@inproceedings{sgem2022s1226,
  title = {THE WATER SOURCES IN THE WATER SUPPLY SYSTEM OF THE TOWN OF BERKOVITSA},
  author = {Maria Temelkova and Marian Varbanov},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Water Resources. Forest, Marine and Ocean Ecosystems},
  year = {2022},
  pages = {209-216},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2022/3.1/s12.26}
}