@misc{indiciaeae44acd11fbd,
  title = {Geochemical processes in the Gascoyne Lignite Mining Area, Bowman County, North Dakota},
  author = {D. W. Fisher and D. C. Thorstenson and M. G. Croft and R. L. Houghton},
  year = {1985},
  doi = {10.3133/wri844192},
  url = {https://pubs.usgs.gov/publication/wri844192},
  note = {Source identifier: wri844192}
}