@misc{indiciaeee94f9c60221,
  title = {Pyrrole pigments.},
  author = {R LEMBERG and J W LEGGE},
  year = {1950},
  doi = {10.1146/annurev.bi.19.070150.002243},
  url = {https://pubmed.ncbi.nlm.nih.gov/14771837/},
  note = {Source identifier: 14771837}
}