Sobolewska-Myślik, Katarzyna, i Dominika Kasprowicz. 2018. „The End of Party Representation? Some Remarks on the Relationships Between Parties and Interest Organizations in Contemporary Poland”. The Copernicus Journal of Political Studies, nr 1 (5) (październik):116-27. https://doi.org/10.12775/cjps.2014.01.07.