_:vb2249581 . _:vb2249581 . _:vb2249581 _:vb2249582 . _:vb2249582 "DE" . _:vb2249581 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe"@de . _:vb2249582 "Stilleweg 2" . _:vb2249582 . _:vb2249582 "30655" . _:vb2249581 . _:vb2249582 "Hannover" .