This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Jan Havrlant
Department of Social Geography and Regional Development, Faculty of Science, University of Ostrava, Chittussiho Str. 10, 710 00 Ostrava, Czech Republic
Ludèk Krtička
Department of Social Geography and Regional Development, Faculty of Science, University of Ostrava, Chittussiho Str. 10, 710 00 Ostrava, Czech Republic