http://www.vocabularyserver.com/lre/en/http://www.vocabularyserver.com/lre/en/xml.php?skosTema=162Bulgaria http://www.vocabularyserver.com/lre/en/xml.php?skosTema=162 Bulgarian language RT http://www.vocabularyserver.com/lre/en/xml.php?skosTema=162 Central and Eastern Europe BT http://www.vocabularyserver.com/lre/en/xml.php?skosTema=162 Countries and geopolitical areas BT