1. Department of Geo and Mining Tourism, Institute of Earth Resources, Faculty of Mining, Ecology, Process Control and Geotechnologies, Technical University of Košice, 04200 Košice, Slovakia
2. Department of Geography and Geology, Faculty of Natural Sciences, Matej Bel University in Banská Bystrica, 97401 Banská Bystrica, Slovakia
3. Department of Geography and Applied Geoinformatics, Faculty of Humanities and Natural Sciences, University of Prešov, 08116 Prešov, Slovakia