Henrik Frystyk Nielsen; Herv&#233; Ruellan. <a href="http://www.w3.org/TR/2004/NOTE-soap12-af-20040608"><cite>SOAP 1.2 Attachment Feature.</cite></a> 8 June 2004. W3C Note. URL: <a href="http://www.w3.org/TR/2004/NOTE-soap12-af-20040608">http://www.w3.org/TR/2004/NOTE-soap12-af-20040608</a>