PLEWA, Piotr. The Effects of Voluntary Return Programmes on Migration Flows in the Context of the 1973/74 and 2008/09 Economic Crises. Comparative Population Studies, Wiesbaden, Germany, v. 37, n. 1-2, 2012. DOI: 10.12765/CPOS-2012-03. Disponível em: https://www.comparativepopulationstudies.de/index.php/CPoS/article/view/94. Acesso em: 19 apr. 2024.