http://www.vocabularyserver.com/gemet/en/ GEMET Thesaurus EIONET EIONET 1998-12-31 en 2011-04-14 11:55:48 environmental quality 2011-04-14 11:55:48http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=2774http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=270http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=7884http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=9214