@misc{indiciae2ae11a37c9d1,
  title = {Natural Resource Information System, remote sensing studies},
  author = {Leachtenauer, J. and Hirsch, R. and Williams, V. and Tucker, R.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720021643},
  note = {Source identifier: 19720021643}
}