1. Professor, Dept. of Geodesy, Faculty of Social and Technical Sciences, Univ. of Lower Silesia, Wagonowa 9, 53-609 Wrocław, Poland (corresponding author). ORCID: .
2. Research Assistant, Institute of Geodesy and Geoinformatics, Wrocław Univ. of Environmental and Life Sciences, Grunwaldzka 53, 50-357 Wrocław, Poland.
3. Professor, Institute of Geodesy and Geoinformatics, Wrocław Univ. of Environmental and Life Sciences, Grunwaldzka 53, 50-357 Wrocław, Poland. ORCID: .