@inproceedings{sgem2008paper,
  title = {VERTICAL ACCURACY OF THE BREAKTHROUGH OF THE TUNNEL},
  author = {Z. Kapovic and G. Novakovic and A. Marendic and R. Paar},
  booktitle = {8th International Scientific Conference - SGEM2008},
  year = {2008},
  pages = {517-524},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}