LÁMFALUSSY, Alexandre. Challenges ahead for the European Union. Competitio, [S. l.], v. 4, n. 2, p. 7–12, 2005. DOI: 10.21845/comp/2005/2/1. Disponível em: https://ojs.lib.unideb.hu/competitio/article/view/7545.. Acesso em: 2 may. 2024.