Reference

Sanja Pavlovic [Pavlović], Marija Belij, Marina Vesic [Vesić], Sara Stanic Jovanovic [Stanić Jovanović], Irena Manojlovic [Manojlović] (2019): Improvement of the Relationship between Environment and Tourism: Case Study of the National Park Đerdap in Serbia – Mitteilungen der Österreichischen Geographischen Gesellschaft – 161: 251 - 270.