<?xml version='1.0' ?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" 
[
    <!ENTITY requirements SYSTEM "requirements.xml">
    <!ENTITY design SYSTEM "design.xml">
]>

<book>
  <title>General Comments</title>
  <bookinfo>
    <author>
      <firstname>Phong</firstname>
      <surname>Nguyen</surname>
      <affiliation>
	<address><email>phong@arsdigita.com</email></address>
      </affiliation>
    </author>
  </bookinfo>
  
  <chapter id="dev-guide">
    <title>Developer's guide</title>
    &requirements;
    &design;
  </chapter>
  
  <chapter id="users-guide">
    <title>User's guide</title>
    <para></para>
  </chapter>
  
  
</book>
