@misc{indiciae27000086cd24,
  title = {Biological externalities and evolution: a comment.},
  author = {H E Frech},
  year = {1973},
  doi = {10.1016/0022-5193(73)90079-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4730025/},
  note = {Source identifier: 4730025}
}