1. Faculty of Geodesy and Geotechnics, Rzeszow University of Technology, 35-959 Rzeszów, Poland
2. Faculty of Environmental Engineering and Geodesy, University of Life Sciences in Lublin, 20-950 Lublin, Poland
3. Department of Land Surveying, University of Agriculture in Krakow, 31-120 Krakow, Poland
4. Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland