Papanastasiou, Stefanos. „The Education Effect on Income across Two Generations in EU Welfare States“. Social Cohesion and Development 12, no. 2 (Dezember 21, 2018): 101–113. Zugegriffen Oktober 19, 2024. https://ejournals.epublishing.ekt.gr/index.php/SCAD/article/view/18957.