@inproceedings{sgem2019s03015,
  title = {COMPARATIVE ANALYSIS OF COHESION COEFFICIENTS AND INTERNAL FRICTION ANGLES OF ROCKS DEPENDING ON THE FUNCTIONAL TYPE OF THE MOHR-COULOMB ENVELOPE.},
  author = {P. I. Tsoi},
  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 = {119-126},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2019/1.3/s03.015}
}