@misc{indiciaefee33657bc51,
  title = {VARIABILITY IN VISUAL THRESHOLDS.},
  author = {J M JACKSON},
  year = {1965},
  doi = {10.1080/00223980.1965.9916772},
  url = {https://pubmed.ncbi.nlm.nih.gov/14244136/},
  note = {Source identifier: 14244136}
}