Witkowska, Janina. “Regional Integration and Capital Mobility in the World Economy: Experiences of the European Union, NAFTA and AFTA”. Comparative Economic Research. Central and Eastern Europe 11, no. 1-2 (January 1, 2008): 89–104. Accessed October 25, 2026. https://czasopisma.uni.lodz.pl/CER/article/view/21526.