@misc{indiciaecfe21421e91c,
  title = {Procedures for gathering ground truth information for a supervised approach to a computer-implemented land cover classification of LANDSAT-acquired multispectral scanner data},
  author = {Joyce, A. T.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780007606},
  note = {Source identifier: 19780007606}
}