@misc{indiciae3008c75ba30d,
  title = {Environmental fluctuations and population size.},
  author = {F J Ayala},
  year = {1971},
  doi = {10.1038/231112b0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4930086/},
  note = {Source identifier: 4930086}
}