@misc{indiciaea473ecd1ebc4,
  title = {Note on the Indol Test in Tryptophane Solution.},
  author = {C Barthel},
  year = {1921},
  doi = {10.1128/jb.6.1.85-88.1921},
  url = {https://pubmed.ncbi.nlm.nih.gov/16558911/},
  note = {Source identifier: 16558911}
}