@misc{indiciae27fa44a99ec1,
  title = {Spatial-dynamic population systems: analysis and projection.},
  author = {J Shen},
  year = {1994},
  doi = {10.1068/a260471},
  url = {https://pubmed.ncbi.nlm.nih.gov/12345266/},
  note = {Source identifier: 12345266}
}