@misc{indiciae3864d675abbe,
  title = {Temporal relationship between dynamic heart rate variability and electroencephalographic activity during sleep in man.},
  author = {H Otzenberger and C Simon and C Gronfier and G Brandenberger},
  year = {1997},
  doi = {10.1016/s0304-3940(97)00448-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/9237486/},
  note = {Source identifier: 9237486}
}