@misc{indiciae60173c82c335,
  title = {Refraction factor.},
  author = {W T Parker and G S Clorfeine},
  year = {1990},
  doi = {10.1016/s0886-3350(13)80745-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/2329491/},
  note = {Source identifier: 2329491}
}