@misc{indiciaeb4c6fde2f466,
  title = {Machine processing methods for earth observational data},
  author = {Landgrebe, D. A. and Billingsley, F. C. and Nichols, J. D.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740046275},
  note = {Source identifier: 19740046275}
}