Bergmann, Olaf. “Famous Cartoon Characters in Polish Satirical Magazines of the Interwar Period (1918–1939): A Statistical Analysis”. Yearbook of the History of Polish Press 19, no. 2 (June 16, 2017): 83–97. Accessed September 6, 2026. https://rhpp.uken.krakow.pl/article/view/3502.