@misc{indiciae0cfd7b07986b,
  title = {[Population projections, 1990-2020].},
  author = {J Langers and G Thill-ditsch},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/12343385/},
  note = {Source identifier: 12343385}
}