ANGELOV, Angel; NIKOLOVA, Velichka. Efficiency of Higher Education Systems in the European Union Member States: A DEA Approach. Scientific Annals of Economics and Business, Iasi, Romania, v. 72, n. 4, p. 651–678, 2025. DOI: 10.47743/saeb-2025-0036. Disponível em: https://saeb.feaa.uaic.ro/index.php/saeb/article/view/2630. Acesso em: 9 jan. 2026.