KWIATKOWSKA, W. The Differentiation of Wages in Polish Economy in the Years 2005-2012. Olsztyn Economic Journal, [S. l.], v. 10, n. 1, p. 37–61, 2015. DOI: 10.31648/oej.3133. Disponível em: https://czasopisma.uwm.edu.pl/index.php/oej/article/view/3133. Acesso em: 28 apr. 2024.