Veselin Dragišić, Vladimir Živanović. "Geological and hydrogeological characteristics of the Đerdap area" in "Toward Sustainable Management of Groundwater Resources", Danube Gorge (Iron Gate), Donji Milanovac, Serbia, 19 - 20 June 2019, International Association of Hydrogeologists (IAH), The Serbian Geological Society (SGS) (2019)