|Description||The LINK element identifies relationships among documents.
For example: authorship, related
indexes, glossaries, older or more recent versions, document
hierarchy, associated resources such as style sheets, etc.
The attribute rel identifies the relationship the document containing LINK has with the document identified in the href attribute of the LINK element. Conversely, attribute rev identifies the relationship between the document identified in the href attribute and the document containing the LINK element.
<LINK Rev="made" Href="mailto:firstname.lastname@example.org">