_:vb2305109 . _:vb2305108 . _:vb2305109 "30655" . _:vb2305108 . _:vb2305109 "Hannover" . _:vb2305108 _:vb2305109 . _:vb2305108 . _:vb2305109 "Stilleweg 2" . _:vb2305108 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@de . _:vb2305109 "DE" .