@misc{indiciaec95c81b249b4,
  title = {Facing the demographic challenge.},
  author = {G Guernsey},
  year = {2000},
  doi = {10.4141/cjas61-002},
  url = {https://pubmed.ncbi.nlm.nih.gov/10642868/},
  note = {Source identifier: 10642868}
}