@misc{indiciaee8b99ff0c8ec,
  title = {Sleep cycle content and sleep cycle duration.},
  author = {V Brezinová},
  year = {1974},
  doi = {10.1016/0013-4694(74)90169-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/4130606/},
  note = {Source identifier: 4130606}
}