@misc{indiciae230fc6c47ad8,
  title = {On B12 biosynthesis and evolution.},
  author = {N H Georgopapadakou and A I Scott},
  year = {1977},
  doi = {10.1016/0022-5193(77)90145-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/592883/},
  note = {Source identifier: 592883}
}