http://www.vocabularyserver.com/gemet/el/ GEMET Thesaurus EIONET EIONET 0000-00-00 el 2011-04-14 11:45:35 μονωτικό υλικό 2011-04-14 11:45:35http://www.vocabularyserver.com/gemet/el/xml.php?skosTema=1042http://www.vocabularyserver.com/gemet/el/xml.php?skosTema=4371http://www.vocabularyserver.com/gemet/el/xml.php?skosTema=5267