@misc{indiciaef2b9b3c97514,
  title = {Tangent screen illumination.},
  author = {E F EISUM},
  year = {1959},
  doi = {10.1111/j.1755-3768.1959.tb03450.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13819790/},
  note = {Source identifier: 13819790}
}