_:vb2448550 "Hannover" . _:vb2448550 "Stilleweg 2" . _:vb2448550 . _:vb2448549 . _:vb2448549 . _:vb2448549 _:vb2448550 . _:vb2448550 "30655" . _:vb2448549 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@en . _:vb2448550 "Deutschland" . _:vb2448549 .