@misc{indiciae855ac3b6cb32,
  title = {A convenient method for the quantitative determination of elemental sulfur in coal by HPLC analysis of perchloroethylene extracts},
  author = {D.H. Buchanan and K.J. Coombs and P.M. Murphy and C. Chaven},
  year = {2002},
  doi = {10.1021/ef00038a010},
  url = {https://pubs.usgs.gov/publication/70017966},
  note = {Source identifier: 70017966}
}