http://www.vocabularyserver.com/gemet/en/ GEMET Thesaurus EIONET EIONET 1998-12-31 en 2011-04-14 11:56:18 waste processing industry 2011-04-14 11:56:18http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=4279http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=2849