_:vb2367305 _:vb2367306 . _:vb2367305 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@de . _:vb2367306 . _:vb2367306 "30655" . _:vb2367306 "Stilleweg 2" . _:vb2367306 "Hannover" . _:vb2367306 "Deutschland" . _:vb2367305 . _:vb2367305 . _:vb2367305 .