@misc{indiciae6c9d0a28a476,
  title = {Study wakefulness. Study the rest-activity cycle. Don't just study sleep.},
  author = {N Kleitman},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/5424629/},
  note = {Source identifier: 5424629}
}