Florczak, Waldemar, and Władysław Welfe. “Central Simulation Model W8D-2010 of the Polish Economy”. Acta Universitatis Lodziensis. Folia Oeconomica, no. 294 (January 1, 2013): 265–318. Accessed December 22, 2025. https://czasopisma.uni.lodz.pl/foe/article/view/26162.