This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Lenka Dubová
Institute for Economic and Environmental Policy, Faculty of Social and Economic Studies,
Jan Evangelista Purkyně University in Ústí nad LabemÚstí nad Labem, Czechia
Jan Macháč
Institute for Economic and Environmental Policy, Faculty of Social and Economic Studies,
Jan Evangelista Purkyně University in Ústí nad LabemÚstí nad Labem, Czechia