@misc{indiciaec3280a4c554b,
  title = {Hours of work and shiftwork.},
  author = {J Rutenfranz and P Knauth and W P Colquhoun},
  year = {1976},
  doi = {10.1080/00140137608931549},
  url = {https://pubmed.ncbi.nlm.nih.gov/976239/},
  note = {Source identifier: 976239}
}