1. Department of Geography, Faculty of Science, J. E. Purkyně University, Ústí nad Labem, Czechia
2. Department of Regional Development and Public Administration, Faculty of Social and Economic Studies, J. E. Purkyně University, Ústí nad Labem, Czechia
3. Department of Physical Geography and Geoecology, Faculty of Science, University of Ostrava, Czechia