@inproceedings{sgem2009paper,
  title = {INVESTIGATION OF CRUSTAL DEFORMATIONS BY THE MEANS OF DIRECTLY DEFINED SPATIAL CHORDS – POSSIBILITY OR PREDETERMINANCY},
  author = {S. Gospodinov and P. Gancheva},
  booktitle = {9th International Multidisciplinary Scientific GeoConference SGEM2009},
  year = {2009},
  pages = {773-782},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}