@inproceedings{sgem2018s03072,
  title = {MATHEMATICAL DETERMINATION OF THE MEAN VALUES OF ASSESSMENT PARAMETERS OF SOLID MINERAL RESOURCES: AVERAGE THICKNESS FOR A ZINC-LEAD ORE PANEL},
  author = {Mihai Marinescu},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration and Mining},
  year = {2018},
  pages = {561-576},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2018/1.3/s03.072}
}