http://www.vocabularyserver.com/gemet/el/ GEMET Thesaurus EIONET EIONET 0000-00-00 el 2011-04-14 11:44:48 βιοσυσσωρευόμενος ρύπος 2011-04-14 11:44:48http://www.vocabularyserver.com/gemet/el/xml.php?skosTema=6395http://www.vocabularyserver.com/gemet/el/xml.php?skosTema=798