@misc{indiciae7294e80946b9,
  title = {Brightness contrast and evoked potentials.},
  author = {D Regan and W Richards},
  year = {1973},
  doi = {10.1364/josa.63.000606},
  url = {https://pubmed.ncbi.nlm.nih.gov/4731338/},
  note = {Source identifier: 4731338}
}