<?xml version="1.0"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY tex "TeX">
  <!ENTITY latex "LaTeX">
]>
<book id="minimal_empty_empty.xml">
</book>
