@inproceedings{sgem2001paper,
  title = {CONTEMPORARY METHODS FOR LAND VOLUME CALCULATION IN OPEN PIT MINES},
  author = {Kiril Bochkov Kutsarov},
  booktitle = {1st International Scientific Conference - SGEM2001},
  year = {2001},
  pages = {105- 110},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}