_:vb2209691 . _:vb2209692 . _:vb2209692 "" . _:vb2209692 "" . _:vb2209692 "" . _:vb2209692 "" . _:vb2209691 . _:vb2209691 "Bundesanstalt f\u00FCr Geowissenschaften und Rohstoffe (BGR)"@de . _:vb2209691 . _:vb2209691 _:vb2209692 .