@misc{indiciaefaa35e701089,
  title = {Exercise and sleep behaviour. A questionnaire approach.},
  author = {J M Porter and J A Horne},
  year = {1981},
  doi = {10.1080/00140138108924872},
  url = {https://pubmed.ncbi.nlm.nih.gov/7333268/},
  note = {Source identifier: 7333268}
}