+<!-- Chapter 11 : Atomics -->
+<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+ parse="xml" href="atomics.xml">
+</xi:include>
+
+<!-- Chapter 12 : Concurrency -->
+<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+ parse="xml" href="concurrency.xml">
+</xi:include>
+
+</part>
+
+<!-- Part 03 : Extensions -->
+<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"