In addition, you can link internally to an XML refentry like:

[link xml.refentry The link text]

This gets converted into <link linkend="xml.refentry">The link text</link>.

Like URLs, the link text is optional. If this is not present, the link text will automatically be the refentry. Example:

[link xml.refentry]

This gets converted into <link linkend="xml.refentry">xml.refentry</link>.