@misc{indiciae02132d05cdda,
  title = {Evolution and gradualness.},
  author = {R Rada},
  year = {1981},
  doi = {10.1016/0303-2647(81)90070-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/7295913/},
  note = {Source identifier: 7295913}
}