@misc{indiciaec79083313148,
  title = {Changes in scotopic visibility thresholds with age.},
  author = {R D GUNKEL and P GOURAS},
  year = {1963},
  doi = {10.1001/archopht.1963.00960040010003},
  url = {https://pubmed.ncbi.nlm.nih.gov/13951273/},
  note = {Source identifier: 13951273}
}