@misc{indiciae55a43fa982b2,
  title = {Vigilance ratios implicate biological rhythms.},
  author = {N Richardson},
  year = {1990},
  doi = {10.2466/pms.1990.70.1.143},
  url = {https://pubmed.ncbi.nlm.nih.gov/2326112/},
  note = {Source identifier: 2326112}
}