@misc{indiciae06e4fa91d1eb,
  title = {Circular migration.},
  author = {G Hugo},
  year = {1977},
  doi = {10.1080/00074917712331333184},
  url = {https://pubmed.ncbi.nlm.nih.gov/12310480/},
  note = {Source identifier: 12310480}
}