TY  - RPRT
TI  - Indigo from Eupatorium laeve.
AU  - G S Hirschmann
AU  - E Ferro
PY  - 1989
DO  - 10.1016/0378-8741(89)90115-3
UR  - https://pubmed.ncbi.nlm.nih.gov/2747265/
ID  - 2747265
ER  -