@inproceedings{sgem2024s0560,
  title = {DETERMINATION OF DEPTH PARAMETERS OF SUBSURFACE VOIDS USING GRAVIMETRIC AND GLOBAL NAVIGATION SATELITTE SYSTEMS MEASUREMENTS},
  author = {Severina Djorova and Maria Nikolova},
  booktitle = {24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Science and Technologies in Geology, Exploration And Mining, Vol 24, Issue 1.1},
  year = {2024},
  pages = {475-482},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2024/1.1/s05.60}
}