BARCZ, Jan. The Cohesion of the European Union in Time of Change. Sprawy Międzynarodowe, [S. l.], v. 71, n. 2, p. 21–39, 2018. DOI: 10.35757/SM.2018.71.2.02. Disponível em: https://czasopisma.isppan.waw.pl/sm/article/view/176. Acesso em: 19 may. 2024.