<http://pandoraworld.ru/topic/200-%D0%BC%D1%8B-%D0%BA%D0%B0%D0%BA-%D1%84%D0%B5%D0%BD%D0%B8%D0%BA%D1%81/#comment-1334>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://pandoraworld.ru/topic/200-%D0%BC%D1%8B-%D0%BA%D0%B0%D0%BA-%D1%84%D0%B5%D0%BD%D0%B8%D0%BA%D1%81/>