KWIATKOWSKI, Eugeniusz; KUBIAK, Paweł; KUCHARSKI, Leszek. Labour Force Mobility in the Polish Economy in Transition. Comparative Economic Research. Central and Eastern Europe, Poland, v. 7, n. 1-2, p. 56–85, 2004. DOI: 10.18778/1508-2008.7.03. Disponível em: https://www.czasopisma.uni.lodz.pl/CER/article/view/30053. Acesso em: 10 aug. 2026.