1. Geographical Institute “Jovan Cvijić”, Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
2. Institute of Environmental Engineering, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
3. Faculty of Media Communications and Multimedia Technologies, Don State Technical University, 344000 Rostov-on-Don, Russia
4. Faculty of Sciences, Department for Geography, Tourism and Hotel Management, University of Novi Sad, 21000 Novi Sad, Serbia
5. Faculty of Economics, University of Kragujevac, 34000 Kragujevac, Serbia
6. Faculty of Hotel Management and Tourism, University of Kragujevac, 36210 Vrnjačka Banja, Serbia