OSTASIEWICZ, Katarzyna. Income and Expenditure Inequalities among Households in Poland. Central and Eastern European Economic Review, Kraków, Poland, n. 19, p. 35–63, 2019. DOI: 10.15678/AOC.2018.1903. Disponível em: https://ceeer.uek.krakow.pl/index.php/aoc/article/view/1595. Acesso em: 29 jun. 2026.