_:vb2055797 . _:vb2055798 . _:vb2055798 "Hannover" . _:vb2055797 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@de . _:vb2055798 "Stilleweg 2" . _:vb2055797 _:vb2055798 . _:vb2055797 . _:vb2055797 . _:vb2055798 "30655" . _:vb2055798 "Deutschland" .