@inproceedings{sgem2017s03104,
  title = {STUDY OF THE DEPENDENCE BETWEEN THE CUTTING DIRECTION RELATIVE TO STRATIFICATION AND THE DIGGING CHARACTERISTICS OF LIGNITE IN OLTENIA COAL BASIN (ROMANIA)},
  author = {Ovidiu Bogdan Tomus and Andrei Andras and Iosif Andras},
  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 = {825-830},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/13/s03.104}
}