@misc{indiciae0744e5a92dcf,
  title = {Indigo from Eupatorium laeve.},
  author = {G S Hirschmann and E Ferro},
  year = {1989},
  doi = {10.1016/0378-8741(89)90115-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/2747265/},
  note = {Source identifier: 2747265}
}