1. Faculty of Mining and Geology, Institute of Applied Geology, Silesian University of Technology, ul. Akademicka 2, 44-100 Gliwice, Poland , phone +48 32 237 13 07
2. Institute of Engineering and Environmental Protection, Faculty of Materials, Civil and Environmental Engineering, University of Bielsko-Biała, ul. Willowa 2, 43-309 Bielsko-Biała, Poland , phone +48 33 827 91 39
3. Institute of Geological Engineering, Faculty of Mining and Geology, University of Ostrava, 17 Listopadu 15/2172, 708 33 Ostrava, Czech Republic , phone +420 59 732 35 00