Wróblewska, Violetta. “A Drop Drills the Rock: On Water in Children’s Literature”. Literatura Ludowa. Journal of Folklore and Popular Culture, no. 4-5 (December 19, 2018): 64–69. Accessed April 10, 2026. https://apcz.umk.pl/LL/article/view/LL.4-5.2018.008.