@misc{indiciae7e1e3435bbee,
  title = {Microprocessor-controlled contrast sensitivity measurements.},
  author = {C J Keemink and G J van der Wildt and J B van Deursen},
  year = {1979},
  doi = {10.1007/bf02443825},
  url = {https://pubmed.ncbi.nlm.nih.gov/317335/},
  note = {Source identifier: 317335}
}