http://www.vocabularyserver.com/gemet/el/ GEMET Thesaurus EIONET EIONET 0000-00-00 el 2011-04-14 11:45:10 μετάλλευμα 2011-04-14 11:45:10http://www.vocabularyserver.com/gemet/el/xml.php?skosTema=6967http://www.vocabularyserver.com/gemet/el/xml.php?skosTema=352http://www.vocabularyserver.com/gemet/el/xml.php?skosTema=7298