@misc{indiciae2e10e694c516,
  title = {Man as timekeeper.},
  author = {D Spiegel},
  year = {1981},
  doi = {10.1007/bf01253035},
  url = {https://pubmed.ncbi.nlm.nih.gov/7282976/},
  note = {Source identifier: 7282976}
}