@inproceedings{sgem2020s04100,
  title = {MINERAL PROCESSING WASTE UTILIZATION},
  author = {Teodora Yankova},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th SGEM International Multidisciplinary Scientific GeoConference Proceedings 2020, Science and Technologies in Geology, Exploration And Mining},
  year = {2020},
  pages = {821-828},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2020/1.1/s04.100}
}