Delhey, J. (2023) „The prospects of catching up for new EU members. Lessons for the accession countries to the European Union from previous enlargements”, Calitatea Vieții, 13(1-4), pp. 21–40. Disponibil la: https://revistacalitateavietii.ro/journal/article/view/890 (Data accesării: 6 noiembrie 2026).