@misc{indiciaeb5c36e7ad301,
  title = {A Field and Laboratory Procedure for Desorbing Coal Gases},
  author = {Charles E. Barker and Ronald C. Johnson and Bonnie L. Crysdale and Arthur C. Clark},
  year = {1991},
  doi = {10.3133/ofr91563},
  url = {https://pubs.usgs.gov/publication/ofr91563},
  note = {Source identifier: ofr91563}
}