[html specs] fix biliography entry spacing
@@ -288,4 +288,16 @@ example before
</xsl:choose>
</xsl:template>
+<xsl:template match="processing-instruction('line-break')">
+ <br />
+</xsl:template>
+
+<xsl:template match="processing-instruction('line-break')" mode="title.markup">
+ <br />
+</xsl:template>
+
+<xsl:template match="processing-instruction('line-break')" mode="bibliomixed.mode">
+ <br />
+</xsl:template>
+
</xsl:stylesheet>
