@inproceedings{sgem2019s05099,
  title = {FILLED AND UNFILLED UNDERGROUND VOIDS EVALUATION USING ELECTRICAL RESISTIVITY METHOD},
  author = {F. Chitea},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining},
  year = {2019},
  pages = {795-802},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2019/1.1/s05.099}
}