ANSI Organization Registration Fact Sheet: web.ansi.org/public/services/reg_org.html
Identifiers for Organizations for Telecommunications Addressing IOTA; http://www.bsi-global.com/DISC/index.xhtml
IETF RFC 1237, "Guidelines for OSI NSAP Allocation in the Internet"
IETF RFC 2763, "Dynamic Hostname Exchange Mechanism for IS-IS"
IS0 8348/AD2, "Addendum to the Network Service Definition Covering Network Layer Addressing" (RFC 941)
ISO 8348, "Network Service Definition Standard"