diff --git a/reference/objaggregation/functions.xml b/reference/objaggregation/functions.xml
new file mode 100644
index 0000000000..3210ecc487
--- /dev/null
+++ b/reference/objaggregation/functions.xml
@@ -0,0 +1,9 @@
+&reference.objaggregation.functions.aggregate;
+&reference.objaggregation.functions.aggregate-methods-by-list;
+&reference.objaggregation.functions.aggregate-methods-by-regexp;
+&reference.objaggregation.functions.aggregate-methods;
+&reference.objaggregation.functions.aggregate-properties-by-list;
+&reference.objaggregation.functions.aggregate-properties-by-regexp;
+&reference.objaggregation.functions.aggregate-properties;
+&reference.objaggregation.functions.deaggregate;
+&reference.objaggregation.functions.aggregation-info;
diff --git a/reference/objaggregation/reference.xml b/reference/objaggregation/reference.xml
index 169c1aeb06..255824300f 100644
--- a/reference/objaggregation/reference.xml
+++ b/reference/objaggregation/reference.xml
@@ -1,10 +1,11 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.1 $ -->
+<!-- $Revision: 1.2 $ -->
  <reference id="ref.objaggregation">
   <title>Object Aggregation/Composition Functions</title>
   <titleabbrev>Object Aggregation</titleabbrev>
 
-  <partintro>
+  <partintro id="objaggregation.partintro">
+    &warn.experimental;
     <section id="objaggregation.intro">
      &reftitle.intro;
      <para>
@@ -409,8 +410,7 @@ method: save
     </section>
   </partintro>
 
-&reference.objaggregation.functions;
-
+  &reference.objaggregation.functions;
  </reference>
 <!-- Keep this comment at the end of the file
 Local variables: