P. Hoffman , F. Yergeau. <a href="http://www.ietf.org/rfc/rfc2781.txt"><cite>UTF-16, an encoding of ISO 10646.</cite></a> IETF RFC 2781. February 2000.    URL: <a href="http://www.ietf.org/rfc/rfc2781.txt">http://www.ietf.org/rfc/rfc2781.txt</a>