戻る

URI はどうにも安定していないので (特に IETF RFC)

RFC 2648: A URN Namespace for IETF Documents
https://www.rfc-editor.org/rfc/rfc2648.html

あるじゃん

> 3. Examples
>
> The following are examples of URNs that a resolver for this namespace can resolve:
>
> urn:ietf:rfc:2141
> urn:ietf:std:50
> urn:ietf:id:ietf-urn-ietf-06
> urn:ietf:mtg:41-urn