relax-ng-textbook/src/docbook/part3.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<part id="ref-guide.xml">
  <title>Short reference guide</title>
  <partintro>
		<para>This part is a concise reference guide covering the elements of the RELAX NG XML syntax, the commented EBNF of the non XML syntax, a glossary and a short reference guide for the W3C XML Schema datatypes (adapted from my book about W3C XML Schema).</para>
  </partintro>
&ch17;
&ch18;
&ch19;
&ch20;
</part>