@misc{indiciae215ba180190f,
  title = {Performance and circadian rhythms.},
  author = {B D Kirkcaldy},
  year = {1984},
  doi = {10.1007/bf00943366},
  url = {https://pubmed.ncbi.nlm.nih.gov/6540664/},
  note = {Source identifier: 6540664}
}