@misc{indiciae5bdb5e54252e,
  title = {Improved photographic documentation.},
  author = {B Krevsky},
  doi = {10.1016/s0016-5107(93)70249-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/8224718/},
  note = {Source identifier: 8224718}
}