@misc{indiciae829995fa694b,
  title = {Visual field analyser and threshold.},
  author = {E L Greve},
  year = {1971},
  doi = {10.1136/bjo.55.10.704},
  url = {https://pubmed.ncbi.nlm.nih.gov/5124846/},
  note = {Source identifier: 5124846}
}