1. Department of Structural Mechanics, Faculty of Civil Engineering, VŠB-Technical University of Ostrava, 17 Listopadu 15, 708 33 Ostrava, Czech Republic
2. Department of Geological Engineering, Faculty of Engineering, Cumhuriyet University, 58140 Sivas, Turkey
3. Faculty of Mining and Geology, Institute of Geological Engineering, VŠB-Technical University of Ostrava, 17 Listopadu 15, 708 33 Ostrava, Czech Republic
4. Department of Environmental Engineering, Faculty of Mining and Geology, VŠB-Technical University of Ostrava, 17 listopadu 15, 708 33 Ostrava, Czech Republic