@misc{indiciae825151be7d1e,
  title = {National coal resource assessment non-proprietary data: Location, stratigraphy, and coal quality for selected tertiary coal in the Northern Rocky Mountains and Great Plains region},
  author = {Romeo M. Flores and A.M. Ochs and G. D. Stricker and M.S. Ellis and S. B. Roberts and C. W. Keighin and E.C. Murphy and V.V. Cavaroc and R. C. Johnson and E.M. Wilde},
  year = {1999},
  doi = {10.3133/ofr99376},
  url = {https://pubs.usgs.gov/publication/ofr99376},
  note = {Source identifier: ofr99376}
}