Gąbka, Maciej. “Habitat Requirements of Nymphaeids in Humic Lakes of the Wielkopolska Region (western Poland)”. Biodiversity: Research and Conservation, no. 3-4 (December 30, 2006): 357–360. Accessed January 16, 2026. https://pressto.amu.edu.pl/index.php/biorc/article/view/42625.