RFC 3987 Handling

...an IRI is defined as a sequence of characters, not as a sequence of octets. This definition accommodates the fact that IRIs may be written on paper or read over the radio as well as stored or transmitted digitally.
Internationalized Resource Identifiers are a complement to URIs , and a new protocol element that is in common use for internationalization.

Language on the Web is a good point to get started.
Newer Post Older Post Home