@misc{indiciaeb18e6d76b276,
  title = {A surface vitrinite reflectance anomaly related to Bell Creek oil field, Montana, U.S.A.},
  author = {C.E. Barker and M.C. Dalziel and M. J. Pawlewicz},
  year = {1983},
  doi = {10.3133/ofr83826},
  url = {https://pubs.usgs.gov/publication/ofr83826},
  note = {Source identifier: ofr83826}
}