RAISOVA, M. Changes in the Structure in EU Countries. Balkans Journal of Emerging Trends in Social Sciences, Belgrade, Serbia, v. 2, n. 1, p. 73–79, 2019. DOI: 10.31410/Balkans.JETSS.2019.2.1.73-79. Disponível em: https://balkans-jetss.org/index.php/index_bjetss/article/view/25. Acesso em: 27 apr. 2025.