@misc{indiciae80270cf7189c,
  title = {Humboldt, Darwin, and population.},
  author = {F N Egerton},
  year = {1970},
  doi = {10.1007/bf00137357},
  url = {https://pubmed.ncbi.nlm.nih.gov/11609656/},
  note = {Source identifier: 11609656}
}