@inproceedings{sgem2009paper,
  title = {EVALUATION OF PILLAR STRENGTH USING NUMERICAL MODELING, CASE STUDY: TABAS COAL MINE},
  author = {M. Najafi and S.E. Jalali and F. Sereshki and A. R. YARAHMADI Bafghi},
  booktitle = {9th International Multidisciplinary Scientific GeoConference SGEM2009},
  year = {2009},
  pages = {421-426},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}