_:vb2330497 . _:vb2330497 . _:vb2330498 "30655" . _:vb2330498 "Hannover" . _:vb2330497 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@en . _:vb2330497 _:vb2330498 . _:vb2330498 . _:vb2330498 "Stilleweg 2" . _:vb2330497 . _:vb2330498 "DE" .