@misc{indiciae7d2992057f4b,
  title = {On weighted visual field indices.},
  author = {A Heijl and G Lindgren and J Olsson and P Asman},
  year = {1992},
  doi = {10.1007/bf00165953},
  url = {https://pubmed.ncbi.nlm.nih.gov/1505776/},
  note = {Source identifier: 1505776}
}