Shane McCarron, et. al. <a href="http://www.w3.org/2010/02/rdfa/drafts/"><cite>XHTML+RDFa 1.1.</cite></a> 30 March 2010. W3C Editor's Draft. URL: <a href="http://www.w3.org/2010/02/rdfa/drafts/">http://www.w3.org/2010/02/rdfa/drafts/</a>