@misc{indiciae23e9123b4ebb,
  title = {Technique for making a customized shade guide.},
  author = {S W Askinas and D A Kaiser},
  year = {1979},
  doi = {10.1016/0022-3913(79)90182-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/379323/},
  note = {Source identifier: 379323}
}