<!DOCTYPE reference PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
<!ENTITY % refpurps.ent PUBLIC "-//O'Reilly//ENTITIES DocBook RefPurposes V2.0//EN" "../../../entities/refpurps.ent">
%refpurps.ent;
<!ENTITY % entities.ent SYSTEM "entities.u.ent">
%entities.ent;
<!ENTITY refentry.xml SYSTEM "refentry.xml">
]>
<reference><title>constant Refentry</title>
&refentry.xml;
</reference>
