Sempach, M. Americanization of Election Campaigns and the Application of Marketing on the Political Market in Poland in the First Decade of Political Changes. In Koszty współczesnych kryzysów; Kisztelińska-Węgrzyńska, A., Ed.; Lodz University Press: Poland, 2021; pp. 165-189. https://doi.org/10.18778/8220-700-2.09.