_:vb2321038 . _:vb2321039 "Hannover" . _:vb2321039 . _:vb2321039 "Stilleweg 2" . _:vb2321038 _:vb2321039 . _:vb2321038 . _:vb2321038 . _:vb2321038 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@en . _:vb2321039 "30655" . _:vb2321039 "Deutschland" .