Synopsis

<xsl:template match="biblioentry" mode="bibliography.cited">
<xsl:param name="bibid" select="@id"/>
<xsl:param name="ab" select="abbrev"/>
<xsl:variable name="nx" select="//xref[@linkend=$bibid]"/>
<xsl:variable name="nc" select="//citation[text()=$ab]"/>
  ...
</xsl:template><xsl:template match="biblioentry" mode="bibliography.all"/><xsl:template match="biblioentry"/>