http://www.vocabularyserver.com/gemet/en/http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=12816nuclear risk http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=12816 risk BT http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=12816 nuclear reactor RT