1. Faculty of Science, Department of Applied Geoinformatics and Cartography, Charles University in Prague, Albertov 6, Prague 2, Czechia
2. Faculty of Geography and Regional Studies, Department of Geoinformatics, Cartography and Remote Sensing, University of Warsaw, Krakowskie Przedmieście 30, Warsaw, Poland
3. The Krkonoše Mountains National Park Administration, Dobrovského 3, Vrchlabí, Czechia
4. Faculty of Science, Department of Experimental Plant Biology, Charles University in Prague, Viničná 5, Prague 2, Czechia