@misc{indiciaeb94cc6cd0325,
  title = {Airborne-biogeochemical survey test-case results},
  author = {William E. Collins and Sheng-Huei Chang and Gary L. Raines and Frank C. Canney and Roger Ashley},
  year = {1980},
  url = {https://pubs.usgs.gov/publication/70112916},
  note = {Source identifier: 70112916}
}