@misc{indiciae14edfa99c963,
  title = {Newly recognized vital nitrogen cycle.},
  author = {H Johnston},
  year = {1972},
  doi = {10.1073/pnas.69.9.2369},
  url = {https://pubmed.ncbi.nlm.nih.gov/4506756/},
  note = {Source identifier: 4506756}
}