@misc{indiciaeac4662ec54bd,
  title = {[New letter tests for measuring visual acuity].},
  author = {V V Volkov and L N Kolesnikova and V B Makulov and V N Pauk and Iu E Shelepin},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3696642/},
  note = {Source identifier: 3696642}
}