1. Ministry of Agriculture, Forestry and Water Management, 22–26, Nemanjina, 11000 Belgrade, Serbia
2. Geographical Institute “Jovan Cvijić” of the Serbian Academy of Sciences and Arts, Ðure Jakšića 9, 11000 Belgrade, Serbia
3. Institute of Sports, Tourism and Service, South Ural State University, 76 Lenin Ave., 454080 Chelyabinsk, Russia
4. Department of Geography, Tourism and Hotel Management, Faculty of Natural Sciences, University of Novi Sad, Trg. D. Obradovića 3, 21000 Novi Sad, Serbia
5. University of Belgrade, Faculty of Geography, Studentski trg 3/III, 11000 Belgrade, Serbia
6. Ministry of Construction, Transport and Infrastructure, 22–26, Nemanjina, 11000 Belgrade, Serbia