@misc{indiciaeb8538d053a28,
  title = {Vitrinite reflectance data for Cretaceous marine shales and coals in the Bighorn Basin, north-central Wyoming and south-central Montana},
  author = {Mark J. Pawlewicz and Thomas M. Finn},
  year = {2012},
  doi = {10.3133/ofr20121254},
  url = {https://pubs.usgs.gov/publication/ofr20121254},
  note = {Source identifier: ofr20121254}
}