@misc{indiciae92b95e019084,
  title = {Letters to the editor: Visual chromaticity-modulation transfer function.},
  author = {E M Granger and J C Heurtley},
  year = {1973},
  doi = {10.1364/josa.63.001173},
  url = {https://pubmed.ncbi.nlm.nih.gov/4748547/},
  note = {Source identifier: 4748547}
}