Siedschlag, I., Resmini, L., Morgenroth, E., and Petrakos, G. (2007). The Impact of European Integration and Enlargement on Regional Structural Change and Cohesion, Luxembourg: Office for Official Publications of the European Communities, https://www.esri.ie/publications/the-impact-of-european-integration-and-enlargement-on-regional-structural-change-and