BECK, Joachim. Cross-Border Cooperation: Challenges and Perspectives for the Horizontal Dimension of European Integration. Administrative Consulting, [S. l.], n. 2, p. 32–42, 2018. DOI: 10.22394/1726-1139-2018-2-32-42. Disponível em: https://administrative-consulting.owebs.ru/article/view/13515. Acesso em: 8 nov. 2026.