@misc{indiciae124ad3c406cd,
  title = {Integrated sleep analysis, with emphasis on automatic methods.},
  author = {T Penzel and K Stephan and S Kubicki and W M Herrmann},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1760087/},
  note = {Source identifier: 1760087}
}