@inproceedings{sgem2013s02025,
  title = {HYDROCHEMICAL CONDITIONS IN THE REGION OF DOBRUDZHA COAL DEPOSIT (NE BULGARIA)},
  author = {Resss. Assoc. Boriana Chakalova},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING},
  year = {2013},
  pages = {187 - 194 pp},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2013/ba1.v2/s02.025}
}