Kevin Smith; Kevin Smith. <a href="http://www.w3.org/TR/2007/WD-dial-primer-20071101"><cite>DIAL Part 0: Primer.</cite></a> 1 November 2007. W3C Working Draft. (Work in progress.) URL: <a href="http://www.w3.org/TR/2007/WD-dial-primer-20071101">http://www.w3.org/TR/2007/WD-dial-primer-20071101</a>