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机译:Searching for old Mine Workings Through the use of Handheld Gnss Receivers / Vyhledávání Starých Důlních Děl Pomocí Ruční Aparatury Gnss
Institute of Geodesy and Mining Surveying, Faculty of Mining and Geology, VŠB – Technical University of Ostrava, 17. listopadu 15, Ostrava;
handheld GNSS receiver; old mine workings; positional accuracy; people security; property protection;