diff --git a/ref.html b/ref.html
index 33757b8..a2cd7fc 100644
--- a/ref.html
+++ b/ref.html
@@ -35,8 +35,9 @@
 
 <p>
 The header <a href="../../boost/ref.hpp">boost/ref.hpp</a> defines the class template
-<b>boost::reference_wrapper&lt;T&gt;</b> and the two functions <b>boost::ref</b> and
-<b>boost::cref</b> that return instances of <b>boost::reference_wrapper&lt;T&gt;</b>.
+<b>boost::reference_wrapper&lt;T&gt;</b>, the two functions <b>boost::ref</b> and
+<b>boost::cref</b> that return instances of
+<b>boost::reference_wrapper&lt;T&gt;</b>, and the two traits classes <b>boost::is_reference_wrapper&lt;T&gt;</b> and <b>boost::unwrap_reference&lt;T&gt;</b>.
 </p>
 
 <p>
@@ -62,6 +63,14 @@ where <b>X</b> is the type of <b>x</b>. Similarly, <b>boost::cref(x)</b>
 returns a <b>boost::reference_wrapper&lt;X const&gt;(x)</b>.
 </p>
 
+<p>The expression <b>boost::is_reference_wrapper&ltT&gt;::value</b> is
+<b>true</b> if <b>T</b> is a
+<b>reference_wrapper</b>, and <b>false</b> otherwise.
+
+<p>The type-expression <b>boost::unwrap_reference&lt;T&gt;::type</b>
+is <b>T::type</b> if <b>T</b> is a
+<b>reference_wrapper</b>, <b>T</b> otherwise.
+
 <h2>Interface</h2>
 
 <h3>Synopsis</h3>
@@ -72,6 +81,8 @@ namespace boost
     template&lt;class T&gt; class <a href="#reference_wrapper">reference_wrapper</a>;
     template&lt;class T&gt; reference_wrapper&lt;T&gt; <a href="#ref">ref</a>(T &amp; t);
     template&lt;class T&gt; reference_wrapper&lt;T const&gt; <a href="#cref">cref</a>(T const &amp; t);
+    template&lt;class T&gt; class is_reference_wrapper&lt;T const&gt;;
+    template&lt;class T&gt; class unwrap_reference&lt;T const&gt;;
 }
 </pre>
 
@@ -81,6 +92,7 @@ namespace boost
 template&lt;class T&gt; class reference_wrapper
 {
 public:
+    typedef T type;
 
     explicit <a href="#rt_construct">reference_wrapper</a>(T &amp; t);
 
@@ -92,30 +104,36 @@ public:
 
 <h4><a name="rt_construct">explicit reference_wrapper(T &amp; t)</a></h4>
 
+<blockquote>
 <p>
 <b>Effects:</b> Constructs a <b>reference_wrapper</b> object that stores a reference to <b>t</b>.
 </p>
 <p>
 <b>Throws:</b> Nothing.
 </p>
+</blockquote>
 
 <h4><a name="rt_operator">operator T &amp; () const</a></h4>
 
+<blockquote>
 <p>
 <b>Returns:</b> the stored reference.
 </p>
 <p>
 <b>Throws:</b> Nothing.
 </p>
+</blockquote>
 
 <h4><a name="rt_get">T &amp; get() const</a></h4>
 
+<blockquote>
 <p>
 <b>Returns:</b> the stored reference.
 </p>
 <p>
 <b>Throws:</b> Nothing.
 </p>
+</blockquote>
 
 <h3><a name="ref">ref</a></h3>
 
@@ -123,12 +141,14 @@ public:
 template&lt;class T&gt; reference_wrapper&lt;T&gt; ref(T &amp; t);
 </pre>
 
+<blockquote>
 <p>
 <b>Returns:</b> <tt>reference_wrapper&lt;T&gt;(t)</tt>.
 </p>
 <p>
 <b>Throws:</b> Nothing.
 </p>
+</blockquote>
 
 <h3><a name="cref">cref</a></h3>
 
@@ -136,19 +156,47 @@ template&lt;class T&gt; reference_wrapper&lt;T&gt; ref(T &amp; t);
 template&lt;class T&gt; reference_wrapper&lt;T const&gt; cref(T const &amp; t);
 </pre>
 
+<blockquote>
 <p>
 <b>Returns:</b> <tt>reference_wrapper&lt;T const&gt;(t)</tt>.
 </p>
 <p>
 <b>Throws:</b> Nothing.
 </p>
+</blockquote>
+
+<h3><a name="is_reference_wrapper">is_reference_wrapper</a></h3>
+
+<pre>
+template&lt;class T&gt; class is_reference_wrapper&lt;T const&gt;
+{
+ public:
+    static bool value = <i>unspecified</i>;
+};
+</pre>
+Value is <b>true</b> iff <tt>T</tt> is a specialization of <tt>reference_wrapper</tt>.
+
+<h3><a name="unwrap_reference">unwrap_reference</a></h3>
+<pre>
+template&lt;class T&gt; class unwrap_reference&lt;T const&gt;
+{
+ public:
+    typedef <i>unspecified</i> type;
+};
+</pre>
+<tt>type</tt> is equivalent to <tt>T::type</tt> if <tt>T</tt> is a specialization of <tt>reference_wrapper</tt>. Otherwise <tt>type</tt> is equivalent to <tt>T</tt>.
 
 <h2>Acknowledgements</h2>
 
 <p>
-<b>ref</b> and <b>cref</b> were originally part of the Boost.Tuple library.
-They were "promoted to <b>boost::</b> status" because they are generally
-useful.
+<b>ref</b> and <b>cref</b> were originally part of the Boost.Tuple
+library by <a href="../../people/jaakko_jarvi.htm"> Jaakko
+J&auml;rvi</a>.  They were "promoted to <b>boost::</b> status" by <a
+href="../../people/peter_dimov.htm">Peter Dimov</a> because they are
+generally useful.  <a href="../../people/doug_gregor.html">Douglas
+Gregor</a> and <a href="../../people/dave_abrahams.htm">Dave
+Abrahams</a> contributed <tt>is_reference_wrapper</tt> and
+<tt>unwrap_reference</tt>.
 </p>