@misc{indiciaee1c5b71109a0,
  title = {Mapping soil types from multispectral scanner data.},
  author = {Kristof, S. J. and Zachary, A. L.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720028215},
  note = {Source identifier: 19720028215}
}