@inproceedings{sgem2004paper,
  title = {MEASUREMENTS FOR RESTRICTING THE OBTAINED ACID DRENAGE WATERS IN SPOIL HEAP IN ORE MINING},
  author = {S. Mitov and NINOV and A. Kaimakchiev and SULTANOV and I. Grancharov and A. Lechev and M. Mazhdrakov},
  booktitle = {4th International Scientific Conference - SGEM2004},
  year = {2004},
  pages = {253-258},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}