@misc{indiciaee365760ca939,
  title = {New prototype central field scotometer.},
  author = {J A Roth},
  year = {1968},
  doi = {10.1136/bjo.52.5.400},
  url = {https://pubmed.ncbi.nlm.nih.gov/5658395/},
  note = {Source identifier: 5658395}
}