DANEL, Łukasz. The Polish Party System after 25 Years - Theory and Practice. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, Krakow, n. 921, p. 35–53, 2015. Disponível em: https://zeszyty-naukowe.uek.krakow.pl/index.php/zeszyty-naukowe/article/view/699.. Acesso em: 27 jul. 2024.