Eperjesi, Zoltán. “System of Relations Between Competitiveness and Social Cohesion in the European Union (2007–2020)”. Acta Agraria Debreceniensis, no. 72 (May 16, 2017): 39–45. Accessed January 22, 2022. https://ojs.lib.unideb.hu/actaagrar/article/view/1584.