REES, Philip; LOMAX, Nik. Ravenstein Revisited: The Analysis of Migration, Then and Now. Comparative Population Studies, Wiesbaden, Germany, v. 44, 2020. DOI: 10.12765/CPoS-2020-10. Disponível em: https://comparativepopulationstudies.de/index.php/CPoS/article/view/369. Acesso em: 13 jun. 2024.