@misc{indiciae6871f722b7cc,
  title = {[Dark adaptation in achromats].},
  author = {R G Frey and P Heilig and A Thaler},
  year = {1973},
  doi = {10.1007/bf00410079},
  url = {https://pubmed.ncbi.nlm.nih.gov/4539738/},
  note = {Source identifier: 4539738}
}