"Knut Sigurds\u00F8n Heier (20 April 1929 \u2013 14 September 2008) was a Norwegian geochemist. He was a professor at the University of Oslo and the Norwegian Institute of Technology between 1968 and 1989, and was also director of the Norwegian Geological Survey. Heier also spent parts of his research abroad, and was a member of the Apollo Project."@en . . "1929Z"^^ . . "Heier, Knut"@en . . . "1929-04-20Z"^^ . . "Norwegian geochemsit" . "2008Z"^^ . . "Knut S. Heier"@en . "2008-09-14Z"^^ . . . .