@inproceedings{sgem2008paper,
  title = {MINERAL COMPOSITION OF ESTONIAN OIL SHALE SEMI-COKE SEDIMENTS},
  author = {R. MРѕtlep and K. KirsimР°e and E. Puura},
  booktitle = {8th International Scientific Conference - SGEM2008},
  year = {2008},
  pages = {309-310},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}