@misc{indiciae2511feb28647,
  title = {Portable Radiometer Identifies Minerals in the Field},
  author = {Goetz, A. F. H. and Machida, R. A.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19820000050},
  note = {Source identifier: 19820000050}
}