diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,7 +1,7 @@
 LEMON code without an explicit copyright notice is covered by the following
 copyright/license.
 
-Copyright (C) 2003-2009 Egervary Jeno Kombinatorikus Optimalizalasi
+Copyright (C) 2003-2010 Egervary Jeno Kombinatorikus Optimalizalasi
 Kutatocsoport (Egervary Combinatorial Optimization Research Group,
 EGRES).
 
diff --git a/doc/groups.dox b/doc/groups.dox
--- a/doc/groups.dox
+++ b/doc/groups.dox
@@ -263,14 +263,6 @@
 */
 
 /**
-@defgroup matrices Matrices
-@ingroup datas
-\brief Two dimensional data storages implemented in LEMON.
-
-This group contains two dimensional data storages implemented in LEMON.
-*/
-
-/**
 @defgroup auxdat Auxiliary Data Structures
 @ingroup datas
 \brief Auxiliary data structures implemented in LEMON.
@@ -472,19 +464,19 @@
 function.
 
 LEMON contains three algorithms for solving the minimum mean cycle problem:
-- \ref Karp "Karp"'s original algorithm \ref amo93networkflows,
+- \ref KarpMmc Karp's original algorithm \ref amo93networkflows,
   \ref dasdan98minmeancycle.
-- \ref HartmannOrlin "Hartmann-Orlin"'s algorithm, which is an improved
+- \ref HartmannOrlinMmc Hartmann-Orlin's algorithm, which is an improved
   version of Karp's algorithm \ref dasdan98minmeancycle.
-- \ref Howard "Howard"'s policy iteration algorithm
+- \ref HowardMmc Howard's policy iteration algorithm
   \ref dasdan98minmeancycle.
 
-In practice, the Howard algorithm proved to be by far the most efficient
-one, though the best known theoretical bound on its running time is
-exponential.
-Both Karp and HartmannOrlin algorithms run in time O(ne) and use space
-O(n<sup>2</sup>+e), but the latter one is typically faster due to the
-applied early termination scheme.
+In practice, the \ref HowardMmc "Howard" algorithm proved to be by far the
+most efficient one, though the best known theoretical bound on its running
+time is exponential.
+Both \ref KarpMmc "Karp" and \ref HartmannOrlinMmc "Hartmann-Orlin" algorithms
+run in time O(ne) and use space O(n<sup>2</sup>+e), but the latter one is
+typically faster due to the applied early termination scheme.
 */
 
 /**
diff --git a/lemon/arg_parser.h b/lemon/arg_parser.h
--- a/lemon/arg_parser.h
+++ b/lemon/arg_parser.h
@@ -35,12 +35,19 @@
 namespace lemon {
 
   ///Exception used by ArgParser
+
+  ///Exception used by ArgParser.
+  ///
   class ArgParserException : public Exception {
   public:
+    /// Reasons for failure
+
+    /// Reasons for failure.
+    ///
     enum Reason {
-      HELP,         /// <tt>--help</tt> option was given
-      UNKNOWN_OPT,  /// Unknown option was given
-      INVALID_OPT   /// Invalid combination of options
+      HELP,         ///< <tt>--help</tt> option was given.
+      UNKNOWN_OPT,  ///< Unknown option was given.
+      INVALID_OPT   ///< Invalid combination of options.
     };
 
   private:
diff --git a/lemon/hartmann_orlin_mmc.h b/lemon/hartmann_orlin_mmc.h
--- a/lemon/hartmann_orlin_mmc.h
+++ b/lemon/hartmann_orlin_mmc.h
@@ -38,7 +38,7 @@
   /// Default traits class of HartmannOrlinMmc class.
   /// \tparam GR The type of the digraph.
   /// \tparam CM The type of the cost map.
-  /// It must conform to the \ref concepts::Rea_data "Rea_data" concept.
+  /// It must conform to the \ref concepts::ReadMap "ReadMap" concept.
 #ifdef DOXYGEN
   template <typename GR, typename CM>
 #else
@@ -99,7 +99,7 @@
   /// This class implements the Hartmann-Orlin algorithm for finding
   /// a directed cycle of minimum mean cost in a digraph
   /// \ref amo93networkflows, \ref dasdan98minmeancycle.
-  /// It is an improved version of \ref Karp "Karp"'s original algorithm,
+  /// It is an improved version of \ref KarpMmc "Karp"'s original algorithm,
   /// it applies an efficient early termination scheme.
   /// It runs in time O(ne) and uses space O(n<sup>2</sup>+e).
   ///