Stachura, Michał, Dariusz Wieczorek, and Artur Zieliński. “An Attempt at a Typology of Karst Lakes in the Połaniec Basin (Małopolska Upland)”. Bulletin of Geography. Physical Geography Series, no. 15 (December 19, 2018): 63–74. Accessed January 21, 2025. https://apcz.umk.pl/BOGPGS/article/view/15448.