* 歴史

- [1]
[[RFC 2731]] [CITE@en[Encoding Dublin Core Metadata in HTML]]
([[IETF情報提供RFC]]) <http://tools.ietf.org/html/rfc2731>
- [2] [[RFC 5791]]
[CITE@en[RFC 2731 ("Encoding Dublin Core Metadata in HTML") Is Obsolete]]
<http://tools.ietf.org/html/rfc5791>