@misc{indiciae6973911cd5e9,
  title = {Computer spreadsheets for an assessment of in-place gas resources in the low-permeability basin-centered gas accumulation of the Bighorn Basin, Wyoming and Montana},
  author = {R. A. Crovelli and R. C. Johnson and B.G. Lowell},
  year = {1999},
  doi = {10.3133/ofr99315b},
  url = {https://pubs.usgs.gov/publication/ofr99315B},
  note = {Source identifier: ofr99315B}
}