@misc{indiciaec450af5c4c28,
  title = {Notes for the improvement of a remote sensing multispectral data non-supervised classification and mapping technique},
  author = {Dalton, C. C.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730018605},
  note = {Source identifier: 19730018605}
}