Steven Pemberton; David Raggett; Masayasu Ishikawa. <a href="http://www.w3.org/TR/2000/NOTE-xhtml-roadmap-20001108"><cite>HTML Working Group Roadmap.</cite></a> 8 November 2000. W3C Note. URL: <a href="http://www.w3.org/TR/2000/NOTE-xhtml-roadmap-20001108">http://www.w3.org/TR/2000/NOTE-xhtml-roadmap-20001108</a>