Jan Richards; Jutta Treviranus; Tim Boland. <a href="http://www.w3.org/TR/2008/WD-ATAG20-TECHS-20080310"><cite>Implementation Techniques for Authoring Tool Accessibility Guidelines 2.0.</cite></a> 10 March 2008. W3C Working Draft. (Work in progress.) URL: <a href="http://www.w3.org/TR/2008/WD-ATAG20-TECHS-20080310">http://www.w3.org/TR/2008/WD-ATAG20-TECHS-20080310</a>