@misc{indiciae349b46ae25e8,
  title = {Altered volcanic ash partings in Wasatch Formation coal beds of the northern Powder River basin: composition and geologic applications},
  author = {Bruce Forbes Bohor and Richard E. Phillips and Richard M. Pollastro},
  year = {1979},
  doi = {10.3133/ofr791203},
  url = {https://pubs.usgs.gov/publication/ofr791203},
  note = {Source identifier: ofr791203}
}