Alistair Miles; Dan Brickley. <a href="http://www.w3.org/TR/2005/WD-swbp-skos-core-guide-20051102"><cite>SKOS Core Guide.</cite></a> 2 November 2005. W3C Working Draft. (Work in progress.) URL: <a href="http://www.w3.org/TR/2005/WD-swbp-skos-core-guide-20051102">http://www.w3.org/TR/2005/WD-swbp-skos-core-guide-20051102</a>