VERES, Lajos. Cohesion Challenges in the Development of Visegrad 4 Countries. Acta Scientiarum Socialium, [S. l.], n. 44, p. 17–30, 2015. Disponível em: https://journal.uni-mate.hu/index.php/asc/article/view/2150. Acesso em: 31 jan. 2026.