GIL CRUZ, E. M. Towards a European Union Federal Tax System: Legal and Fiscal Perspective. An International Comparison. Review of European and Comparative Law, [S. l.], v. 62, n. 3, p. 197–221, 2025. DOI: 10.31743/recl.18915. Disponível em: https://czasopisma.kul.pl/index.php/recl/article/view/18915. Acesso em: 6 dec. 2025.