@misc{indiciae775ea3ad7dd0,
  title = {Remote Sensing Information Sciences Research Group, year four},
  author = {Estes, John E. and Smith, Terence and Star, Jeffrey L.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870009474},
  note = {Source identifier: 19870009474}
}