_:vb2505449 . _:vb2505448 . _:vb2505449 "Stilleweg 2" . _:vb2505448 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@de . _:vb2505449 "Deutschland" . _:vb2505449 "30655" . _:vb2505449 "Hannover" . _:vb2505448 . _:vb2505448 _:vb2505449 . _:vb2505448 .