@misc{indiciae4b4a72fc4c5a,
  title = {Individual differences in human circadian rhythms.},
  author = {J A Horne and O Ostberg},
  year = {1977},
  doi = {10.1016/0301-0511(77)90001-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/922076/},
  note = {Source identifier: 922076}
}