<xsl:template match="/">
 <ol>
   <xsl:for-each select="issues/issue/objects/object">
   <xsl:if test="./type_ob = 'статья'">
    <li>
    <a>
	 <xsl:attribute name="href"> <xsl:value-of select="./link_ob"/>
	 </xsl:attribute> 
	   Статья "<xsl:value-of select="./name_ob"/>". Автор -  <xsl:value-of select="./author"/>
	</a> 
   </li>
   </xsl:if>
  </xsl:for-each> 
 </ol>
</xsl:template>