@misc{indiciaedb1cacb8e649,
  title = {Letter contrast sensitivity function of the eye.},
  author = {H L Liou and N A Brennan},
  year = {1998},
  doi = {10.1034/j.1600-0420.1998.760314.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9686846/},
  note = {Source identifier: 9686846}
}