Cichoń, M. 2011. Present-day changes in the morphology of the shore zone in the conditions of heavy tourist use: the case of Lake Czarne (upper Parsęta catchment). Quaestiones Geographicae. 30, 3 (Oct. 2011), 5–12. DOI:https://doi.org/10.2478/v10117-011-0022-0.