DOCQUIER , Frédéric; MACHADO , Joël. Income, Population and Migration Flows in the 21st Century - A Societal Challenge for Europe. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 2, n. 12, p. 162–185, 2026. DOI: 10.18559/kv2wt853. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3782. Acesso em: 3 sep. 2026.