Joe Clark. <a href="http://www.alistapart.com/articles/fir">&ldquo;Facts and Opinion About Fahrner Image Replacement&rdquo;</a> in: <cite>A List Apart.</cite> Issue No. 160. 20 October 2003. URL: <a href="http://www.alistapart.com/articles/fir">http://www.alistapart.com/articles/fir</a>