_:vb2055976 _:vb2055977 . _:vb2055977 . _:vb2055977 "Hannover" . _:vb2055977 "30655" . _:vb2055976 . _:vb2055977 "Stilleweg 2" . _:vb2055976 . _:vb2055976 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@de . _:vb2055976 . _:vb2055977 "Deutschland" .