@misc{indiciae2a4e06745333,
  title = {Persistent psychophysiologic (learned) insomnia.},
  author = {P Hauri and J Fisher},
  year = {1986},
  doi = {10.1093/sleep/9.1.38},
  url = {https://pubmed.ncbi.nlm.nih.gov/3961366/},
  note = {Source identifier: 3961366}
}