@misc{indiciae6e8acd2552bc,
  title = {Physiological psychology: sleep.},
  author = {H L Williams and F A Holloway and W J Griffiths},
  year = {1973},
  doi = {10.1146/annurev.ps.24.020173.001431},
  url = {https://pubmed.ncbi.nlm.nih.gov/4353312/},
  note = {Source identifier: 4353312}
}