Kasperkiewicz, Witold, and Andrzej Kacprzyk. “The European Union Innovation Performance in View of the Lisbon Strategy”. Comparative Economic Research. Central and Eastern Europe 13, no. 1-2 (October 14, 2010): 79–96. Accessed December 8, 2025. https://www.czasopisma.uni.lodz.pl/CER/article/view/6566.