@misc{indiciae14e5835eb465,
  title = {An ideal test object for the tangent screen.},
  author = {L Frisén},
  year = {1974},
  doi = {10.1111/j.1755-3768.1974.tb00390.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4408158/},
  note = {Source identifier: 4408158}
}