@misc{indiciaeb9f598209924,
  title = {Mercury and trace element distribution in density separates of a South African Highveld (\#4) coal: Implications for mercury reduction and preparation of export coal},
  author = {Allan Kolker and Connie L. Senior and Chris van Alphen and Alan E. Koenig and Nicholas J. Geboy},
  year = {2017},
  doi = {10.1016/j.coal.2016.02.002},
  url = {https://pubs.usgs.gov/publication/70169975},
  note = {Source identifier: 70169975}
}