@misc{indiciaeca15d9724a3c,
  title = {An over-refraction program for the TI 59 card-programmable calculator.},
  author = {J H Carter},
  year = {1979},
  doi = {10.1097/00006324-197907000-00009},
  url = {https://pubmed.ncbi.nlm.nih.gov/391052/},
  note = {Source identifier: 391052}
}