@misc{indiciaebca1e06e8803,
  title = {Some new techniques for processing remotely obtained images by self-generated spectral masks.},
  author = {Stark, H. and Barker, R. C. and Lee, D.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730026417},
  note = {Source identifier: 19730026417}
}