@misc{indiciaef0ea4b3bcfd3,
  title = {Reproductive efficiency as a social indicator.},
  author = {C Muller and F S Jaffe and M G Kovar},
  year = {1976},
  doi = {10.2190/4wd5-f20v-u0g8-fgfv},
  url = {https://pubmed.ncbi.nlm.nih.gov/955754/},
  note = {Source identifier: 955754}
}