Institute of Geological Engineering, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. listopadu 15/2172 708 33, Ostrava Poruba
L. Hofrichterová
Institute of Geological Engineering, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. listopadu 15/2172 708 33, Ostrava Poruba
H. Lahuta
Institute of Geological Engineering, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. listopadu 15/2172 708 33, Ostrava Poruba