@misc{indiciaedcb4d84d1993,
  title = {A notation for the amino acids based on the genetic code.},
  author = {J A Black},
  year = {1969},
  doi = {10.1139/o69-091},
  url = {https://pubmed.ncbi.nlm.nih.gov/5791555/},
  note = {Source identifier: 5791555}
}