Lisecka, Małgorzata. “Adolf Sonnenfeld’s Pan Twardowski: Some Observations on the Theatrical Musical Version of the Legend ”. Literatura Ludowa. Journal of Folklore and Popular Culture 67, no. 1-2 (June 30, 2023): 107–121. Accessed July 8, 2025. https://apcz.umk.pl/LL/article/view/45249.