@misc{indiciaeb646c4c6a23c,
  title = {Population geography.},
  author = {J I Clarke},
  year = {1979},
  doi = {10.1177/030913257900300202},
  url = {https://pubmed.ncbi.nlm.nih.gov/12278872/},
  note = {Source identifier: 12278872}
}