Dick Bulterman. <a href="http://www.w3.org/TR/2008/REC-SMIL3-20081201"><cite>Synchronized Multimedia Integration Language (SMIL 3.0).</cite></a> 1 December 2008. W3C Recommendation. URL: <a href="http://www.w3.org/TR/2008/REC-SMIL3-20081201">http://www.w3.org/TR/2008/REC-SMIL3-20081201</a>