diff --git a/Utils/Mainpage.dox b/Utils/Mainpage.dox
index 3c0c53f7843e30692c0975cc30a9688e8a0d946b..fe6dd746948be35794f24b299ab47c3d403d2e0f 100644
--- a/Utils/Mainpage.dox
+++ b/Utils/Mainpage.dox
@@ -47,6 +47,8 @@ namespace senf {
     <tr><td>\ref boost_parameter</td><td>Utilities concerning the <a
     href="http://www.boost.org/doc/libs/1_33_1/libs/parameter/doc/html/index.html">Boost.Parameter</a>
     library</td></tr>
+
+    <tr><td>\ref phoenix_helpers</td><td>Phoenix functors</td></tr>
     </table>
 
 
@@ -108,6 +110,8 @@ namespace senf {
 
     <tr><td>\ref backtraces</td><td>Utilities to parse and format backtrace information as provided
     by the GNU libc</td></tr>
+
+    <tr><td>signalName()</td><td>convert signal number to string representation</td></tr>
     </table>
 
 
diff --git a/Utils/Phoenix.hh b/Utils/Phoenix.hh
index c0e81e5bf4f2e2ead1d39867bc49d219ea279d38..5e043621528d2d7ec6da01813444848296c25088 100644
--- a/Utils/Phoenix.hh
+++ b/Utils/Phoenix.hh
@@ -33,10 +33,25 @@
 #include "Phoenix.ih"
 ///////////////////////////////hh.p////////////////////////////////////////
 
+/** \defgroup phoenix_helpers Boost.Phoenix extensions */
+
 namespace senf {
 namespace phoenix {
+    
+    /** \brief \c push_back phoenix functor
+
+        <tt>push_back(c, x) := c.push_back(x)</tt>
 
+        \ingroup phoenix_helpers
+     */
     ::phoenix::function<detail::push_back> const push_back;
+
+    /** \brief \c clear phoenix functor
+
+        <tt>clear(c) := c.clear()</tt>
+
+        \ingroup phoenix_helpers
+     */
     ::phoenix::function<detail::clear>     const clear;
 
 }}
diff --git a/Utils/signalnames.hh b/Utils/signalnames.hh
index d052e86b3b5c969e1ce25711b94fc33a166d847e..ecfbe4eee1cb306a41c238d76d085346229b8bb3 100644
--- a/Utils/signalnames.hh
+++ b/Utils/signalnames.hh
@@ -34,6 +34,7 @@
 
 namespace senf {
 
+    /** \brief Convert signal number to signal name */
     std::string const & signalName(int signal);
 
 }