Obrovski, B.; Mihajlović, I.; Vojinović Miloradov, M.; Sremački, M.; Španik, I.; Petrović, M. Groundwater Quality Assessment of Protected Aquatic Eco-Systems in Cross-Border Areas of Serbia and Croatia: Scientific Paper. J. Serb. Chem. Soc. 2022, 87, 121-132.