@inproceedings{sgem2004paper,
  title = {MINE ROADS – AN INSUFFICIENTLY INVESTIGATED FIELD},
  author = {A. Smilyanov and I. Markov and D. Hristanov and T. Petrov and V. Balikov},
  booktitle = {4th International Scientific Conference - SGEM2004},
  year = {2004},
  pages = {81-86},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}