@inproceedings{sgem2006paper,
  title = {COLUMN FLOTATION OF BLACK COAL SLURRIES FROM AN OKR LOCALITY, DARKOV MINE},
  author = {P. Fecko and S. Stanclova},
  booktitle = {6th International Scientific Conference - SGEM},
  year = {2006},
  pages = {99-106},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}