@misc{indiciaee4bfa40f516a,
  title = {Group selection among alternative evolutionarily stable strategies.},
  author = {R Boyd and P J Richerson},
  year = {1990},
  doi = {10.1016/s0022-5193(05)80113-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/2232821/},
  note = {Source identifier: 2232821}
}