@inproceedings{sgem2018s18015,
  title = {POSSIBLE USES OF COAL IN CIRCULAR ECONOMY},
  author = {Mihai Cruceru},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Energy and Clean Technologies},
  year = {2018},
  pages = {113-120},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2018/4.2/s18.015}
}