John Ibbotson. <a href="http://www.w3.org/TR/2003/NOTE-xmlp-scenarios-20030730"><cite>SOAP Version 1.2 Usage Scenarios.</cite></a> 30 July 2003. W3C Note. URL: <a href="http://www.w3.org/TR/2003/NOTE-xmlp-scenarios-20030730">http://www.w3.org/TR/2003/NOTE-xmlp-scenarios-20030730</a>