_:vb2217050 . _:vb2217051 . _:vb2217051 "30655" . _:vb2217050 . _:vb2217051 "DE" . _:vb2217051 "Hannover" . _:vb2217050 . _:vb2217050 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@de . _:vb2217051 "Stilleweg 2" . _:vb2217050 _:vb2217051 .