@misc{indiciae3accb21cf102,
  title = {Speculations on the evolution of the genetic code. II.},
  author = {H Hartman},
  year = {1978},
  doi = {10.1007/bf00931410},
  url = {https://pubmed.ncbi.nlm.nih.gov/752133/},
  note = {Source identifier: 752133}
}