@misc{indiciae6a08ed2290cf,
  title = {Why fertility changes.},
  author = {C Hirschman},
  year = {1994},
  doi = {10.1146/annurev.so.20.080194.001223},
  url = {https://pubmed.ncbi.nlm.nih.gov/12318868/},
  note = {Source identifier: 12318868}
}