@misc{indiciae5bca792b56c5,
  title = {Evaluation of near-infrared spectra for detecting ammonium minerals at Shoshone Geyser Basin, Yellowstone National Park, Wyoming},
  author = {M. D. Krohn},
  year = {1993},
  doi = {10.3133/ofr93293},
  url = {https://pubs.usgs.gov/publication/ofr93293},
  note = {Source identifier: ofr93293}
}