@misc{indiciae84cd8020e6fc,
  title = {Molecular evolution as predicted by natural selection.},
  author = {L Van Valen},
  year = {1974},
  doi = {10.1007/bf01796554},
  url = {https://pubmed.ncbi.nlm.nih.gov/4407466/},
  note = {Source identifier: 4407466}
}