1 | Faculty of Geoengineering, Mining and Geology Wroclaw University of Science and Technology Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, Poland |
2 | Department of Mining and Geodesy Faculty of Geoengineering, Mining and Geology Wroclaw University of Science and Technology Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, Poland |