ulink.footnotes
ulink.footnotes — Generate footnotes for ulinks?
Synopsis
<xsl:param name="ulink.footnotes" select="0"/>
Description
If non-zero, and if ulink.show also is non-zero,
the URL of each ulink will appear as a footnote.
Dblatex Limitation
The URL cannot be shown in a footnote if the ulinks
are in list terms or heading titles.