Cross References:ISO 639-2:1998ISO 3166-1:1997ISO/IEC 10646:2003IEEE 1484.12.1-2002IETF RFC 1951:1996IETF RFC 2119:1997IETF RFC 2234:1997IETF RFC 2732:1999IETF RFC 3986:2005All current amendments available at time of purchase are included with the purchase of this document.