[1] Serbian Acad Arts & Sci, Geog Inst Jovan Cvijic, Dept Cartog, Belgrade, Serbia
[2] Univ Novi Sad, Fac Sci, Dept Geog Tourism & Hotel Management, Novi Sad, Serbia
[3] Serbian Acad Arts & Sci, Geog Inst Jovan Cvijic, Dept Social Geog, Belgrade, Serbia
[4] RUDN Univ, Peoples Friendship Univ Russia, Fac Econ, Dept Reg Econ & Geog, Moscow, Russia
[5] Serbian Acad Arts & Sci, Geog Inst Jovan Cvijic, Dept Phys Geog, Belgrade, Serbia