@misc{indiciae8dbbefb9ef79,
  title = {L-Tryptophane and sleep.},
  author = {E Hartmann and R Chung and C P Chien},
  year = {1971},
  doi = {10.1007/bf00402635},
  url = {https://pubmed.ncbi.nlm.nih.gov/4935665/},
  note = {Source identifier: 4935665}
}