@misc{indiciae81ee0d961488,
  title = {Colour in document examination.},
  author = {R N Totty},
  year = {1977},
  doi = {10.1016/s0015-7368(77)71107-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/591903/},
  note = {Source identifier: 591903}
}