_:vb2320437 . _:vb2320438 . _:vb2320438 "DE" . _:vb2320438 "30655" . _:vb2320437 . _:vb2320438 "Hannover" . _:vb2320437 . _:vb2320438 "Stilleweg 2" . _:vb2320437 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@de . _:vb2320437 _:vb2320438 .