Rhys Lewis. <a href="http://www.w3.org/TR/2005/WD-di-gloss-20050118"><cite>Glossary of Terms for Device Independence.</cite></a> 18 January 2005. W3C Working Draft. (Work in progress.) URL: <a href="http://www.w3.org/TR/2005/WD-di-gloss-20050118">http://www.w3.org/TR/2005/WD-di-gloss-20050118</a>