https://vocabularyserver.com/udc/en/ Universal Decimal Classification UDC Consortium UDC Consortium 2019-03-06 en 2019-03-06 15:43:12 Processes related to position, arrangement, movement, physical properties, states of matter 2019-03-06 15:43:12https://vocabularyserver.com/udc/en/xml.php?skosTema=592