@misc{indiciaea44f5a8ff920,
  title = {Principled halftoning based on human vision models},
  author = {Mulligan, Jeffrey B. and Ahumada, Albert J., Jr.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930049442},
  note = {Source identifier: 19930049442}
}