K. Zeilenga. <a href="http://www.ietf.org/rfc/rfc4514.txt"><cite>Lightweight Directory Access Protocol : String Representation of Distinguished Names</cite></a>. June 2006. IETF RFC 4514. URL: <a href="http://www.ietf.org/rfc/rfc4514.txt">http://www.ietf.org/rfc/rfc4514.txt</a>