Steven Pemberton; Masayasu Ishikawa. <a href="http://www.w3.org/TR/2005/WD-xframes-20051012"><cite>XFrames.</cite></a> 12 October 2005. W3C Working Draft. (Work in progress.) URL: <a href="http://www.w3.org/TR/2005/WD-xframes-20051012">http://www.w3.org/TR/2005/WD-xframes-20051012</a>