Sobczak, Elżbieta. “Smart Specialization of Workforce Structure in the European Union Countries – Dynamic Analysis Applying Shift-Share Analysis Method”. Comparative Economic Research. Central and Eastern Europe 15, no. 4 (March 8, 2013): 219–232. Accessed April 8, 2025. https://czasopisma.uni.lodz.pl/CER/article/view/6855.