@inproceedings{sgem2005paper,
  title = {GEODETIC MEASUREMENTS AND LANDSLIDE INVESTIGATIONS OF THE BALCHIC TOWN FOR PERIOD 1966-2004},
  author = {TZ. Tzenkov and S. Gospodinov and G. Stoev},
  booktitle = {5th International Scientific Conference - SGEM2005},
  year = {2005},
  pages = {501-510},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}