@misc{indiciae6974738c353a,
  title = {[Tryptophan--a physiologic hypnotic?].},
  author = {P Semler and H Gehlhoff},
  year = {1981},
  url = {https://pubmed.ncbi.nlm.nih.gov/7219328/},
  note = {Source identifier: 7219328}
}