1 | University of Warmia and Mazury in Olsztyn, Faculty of Technical Sciences, Oczapowskiego 11, 10-759 Olsztyn, Poland |
2 | Geotronics Dystrybucja Sp. z o.o., Centralna 36, 31-586 Kraków, Poland |
3 | University of Warmia and Mazury in Olsztyn, Faculty of Geoengineering, Institute of Geodesy and Civil Engineering, Oczapowskiego 1, 10-719 Olsztyn, Poland |