@inproceedings{sgem2005paper,
  title = {STABILITY CRITERIA OF KARST CAVERN VAULTS},
  author = {I. Ivanov},
  booktitle = {5th International Scientific Conference - SGEM2005},
  year = {2005},
  pages = {531-540},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}