Authors
Petr Konečný
Faculty of Civil Engineering, VSB – Technical University of Ostrava, Ostrava, Czech Republic
Jacek Katzer
Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
Janusz Kobaka
Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
Karol Seweryn
Centrum Badań Kosmicznych Polskiej Akademii Nauk (CBK PAN), Warsaw, Poland