Ron Daniel Jr.; Eve Maler; Steven DeRose. <a href="http://www.w3.org/TR/2002/WD-xptr-xpointer-20021219/"><cite>XPointer xpointer() Scheme.</cite></a> 19 December 2002. W3C Working Draft. (Work in progress.) URL: <a href="http://www.w3.org/TR/2002/WD-xptr-xpointer-20021219/">http://www.w3.org/TR/2002/WD-xptr-xpointer-20021219/</a>