Ciżkowicz, Piotr, et al. “EFFECTIVENESS OF SPECIAL ECONOMIC ZONES IN POLAND AS AN ECONOMIC POLICY TOOL: AN EMPIRICAL ANALYSIS USING SPATIAL PANEL MODELS”. Acta Universitatis Lodziensis. Folia Oeconomica, vol. 6, no. 308, May 2015, https://czasopisma.uni.lodz.pl/foe/article/view/351.