<listitem>
<para>The maintainer prepares a source package (.dsc) and puts it online
somewhere (like on mentors.debian.net). Or even better, she provides
-a link to a <xref linkend="servers-vcs">public VCS repository</link> where
+a link to a <ulink linkend="servers-vcs">public VCS repository</ulink> where
the package is maintained.</para>
</listitem>
<listitem>