@inproceedings{sgem2002paper,
  title = {ASSESSMENT OF DAMAGES TO LANDSCAPE AT OPENCAST MINING},
  author = {P. Petrov and V. Georgiev and M. Nesheva and M. Toneva and L. Marinova},
  booktitle = {2nd International Scientific Conference - SGEM2002},
  year = {2002},
  pages = {415-430},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}