@misc{indiciaecf84ff454e80,
  title = {Population density effects on longevity.},
  author = {J L Graves and L D Mueller},
  year = {1993},
  doi = {10.1007/bf01435991},
  url = {https://pubmed.ncbi.nlm.nih.gov/8125282/},
  note = {Source identifier: 8125282}
}