@inproceedings{sgem2009paper, title = {APPLICATION OF LARGE UNDERGROUND SPACES IN HARD ROCKS: PAST, PRESENT AND THE FUTURE}, author = {S.E. Jalali and A. M. Beiranvand and M. Eftekhari}, booktitle = {9th International Multidisciplinary Scientific GeoConference SGEM2009}, year = {2009}, pages = {349-356}, publisher = {SGEM Scientific GeoConference}, doi = {} }