@misc{indiciae04fdf0f800ad,
  title = {Circadian rythms, mental efficiency and shift work.},
  author = {W P Colquhoun},
  year = {1970},
  doi = {10.1080/00140137008931176},
  url = {https://pubmed.ncbi.nlm.nih.gov/5490934/},
  note = {Source identifier: 5490934}
}