@misc{indiciaeb69bea919707,
  title = {Probing visual function with psychophysics and photochemistry.},
  author = {F W Fitzke and C M Kemp},
  year = {1989},
  doi = {10.1038/eye.1989.12},
  url = {https://pubmed.ncbi.nlm.nih.gov/2591602/},
  note = {Source identifier: 2591602}
}