diff --git a/language/predefined/closure.xml b/language/predefined/closure.xml
index 7ab0990e2..1372ad041 100644
--- a/language/predefined/closure.xml
+++ b/language/predefined/closure.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- EN-Revision: 14767af0f05dffa6fdb9b49e1a1f4e9ca7022a60 Maintainer: khelaz Status: ready -->
 <!-- Reviewed: no Maintainer: cucinato -->
-<phpdoc:classref xml:id="class.closure" xmlns:phpdoc="http://php.net/ns/phpdoc" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
+<reference xml:id="class.closure" role="class" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
  
  <title>La classe Closure</title>
  <titleabbrev>Closure</titleabbrev>
@@ -61,7 +61,7 @@
  &language.predefined.closure.call;
  &language.predefined.closure.fromcallable;
 
-</phpdoc:classref>
+</reference>
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/datetime/datetime.xml b/reference/datetime/datetime.xml
index 0cfe15051..dc6a206b8 100644
--- a/reference/datetime/datetime.xml
+++ b/reference/datetime/datetime.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- EN-Revision: 14767af0f05dffa6fdb9b49e1a1f4e9ca7022a60 Maintainer: pastore Status: ready -->
 <!-- CREDITS: cucinato -->
-<phpdoc:classref xml:id="class.datetime" xmlns:phpdoc="http://php.net/ns/phpdoc" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
+<reference xml:id="class.datetime" role="class" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
 
  <title>La classe DateTime</title>
  <titleabbrev>DateTime</titleabbrev>
@@ -104,7 +104,7 @@
 
  &reference.datetime.entities.datetime;
 
-</phpdoc:classref>
+</reference>
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/gmp/gmp.xml b/reference/gmp/gmp.xml
index 27eeaa520..acbd31bfa 100644
--- a/reference/gmp/gmp.xml
+++ b/reference/gmp/gmp.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- EN-Revision: 8932dc479ab319693fe984a4eed2b3c768540256 Maintainer: pastore Status: ready -->
 
-<phpdoc:classref xml:id="class.gmp" xmlns:phpdoc="http://php.net/ns/phpdoc" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
+<reference xml:id="class.gmp" role="class" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
 
  <title>La classe GMP</title>
  <titleabbrev>GMP</titleabbrev>
@@ -40,7 +40,7 @@
   </section>
  </partintro>
 
-</phpdoc:classref>
+</reference>
 
 <!-- Keep this comment at the end of the file
 Local variables: