@misc{indiciae891a31730006,
  title = {Air operations and circadian performance rhythms.},
  author = {K E Klein and H M Wegmann and G Athanassenas and H Hohlweck and P Kuklinski},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/769776/},
  note = {Source identifier: 769776}
}