<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<book>
<bookinfo>
  <title>DocBook: The Definitive Guide</title>
  <authorgroup>
    <collab><collabname>Lenny Muellner</collabname></collab>
    <collab><collabname>Norman Walsh</collabname></collab>
  </authorgroup>
</bookinfo>
<chapter><title>Just an Example</title>
<para>
This is just an example, in real life, Lenny and Norm are both
<sgmltag>Author</sgmltag>s.
</para>
</chapter>
</book>