@misc{indiciae91245496ea2f,
  title = {Distribution of arsenic, selenium, and other trace elements in high pyrite Appalachian coals: evidence for multiple episodes of pyrite formation},
  author = {S. F. Diehl and M. B. Goldhaber and A.E. Koenig and H.A. Lowers and L.F. Ruppert},
  year = {2012},
  doi = {10.1016/j.coal.2012.01.015},
  url = {https://pubs.usgs.gov/publication/70118335},
  note = {Source identifier: 70118335}
}