@inproceedings{sgem2017s03057,
  title = {INFLUENCE OF PHYSICAL-MECHANICAL AND TECHNOLOGICAL CHARACTERISTICS OF COAL AND OVERBURDEN ROCKS ON THE EXCAVATION PROCESS},
  author = {Lazar Maria and Andras Iosif and Faur Florin and Andras Andrei},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining},
  year = {2017},
  pages = {445-452},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/13/s03.057}
}