@misc{indiciae618ac4161c8c,
  title = {U. S. Geological Survey coalbed methane field conference, May 9-10, 2001},
  year = {2001},
  doi = {10.3133/ofr01235},
  url = {https://pubs.usgs.gov/publication/ofr01235},
  note = {Source identifier: ofr01235}
}