@misc{indiciaeef2bd8d5b2d4,
  title = {Macsigma0 ??ftware for Image Display and Analysis on the Macintosh},
  author = {Norikane, L. and Freeman, A.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/20060038656},
  note = {Source identifier: 20060038656}
}