Index: Core/Gui/src/Core.Gui/Commands/RelayCommand.cs
===================================================================
diff -u -rac11dc0cff110f04dfbbc62f42a12a3c2c2feb37 -r5656a1c68b792647f0222b72b2a80d92c96adb89
--- Core/Gui/src/Core.Gui/Commands/RelayCommand.cs	(.../RelayCommand.cs)	(revision ac11dc0cff110f04dfbbc62f42a12a3c2c2feb37)
+++ Core/Gui/src/Core.Gui/Commands/RelayCommand.cs	(.../RelayCommand.cs)	(revision 5656a1c68b792647f0222b72b2a80d92c96adb89)
@@ -49,8 +49,8 @@
         /// Creates a new instance of <see cref="RelayCommand"/>.
         /// </summary>
         /// <param name="action">The action to execute.</param>
-        /// <param name="canExecute">The function that determines whether command can execute.</param>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="action"/> is <c>null</c>.</exception>
+        /// <param name="canExecute">The function that determines whether the command can execute.</param>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
         public RelayCommand(Action<object> action, Func<object, bool> canExecute)
         {
             if (action == null)
Index: Core/Gui/src/Core.Gui/Commands/RoutedCommandHandler.cs
===================================================================
diff -u -rabdbd8693fa86216902285daf0c313e89fb43e4a -r5656a1c68b792647f0222b72b2a80d92c96adb89
--- Core/Gui/src/Core.Gui/Commands/RoutedCommandHandler.cs	(.../RoutedCommandHandler.cs)	(revision abdbd8693fa86216902285daf0c313e89fb43e4a)
+++ Core/Gui/src/Core.Gui/Commands/RoutedCommandHandler.cs	(.../RoutedCommandHandler.cs)	(revision 5656a1c68b792647f0222b72b2a80d92c96adb89)
@@ -58,11 +58,11 @@
         }
 
         /// <summary>
-        /// Registers this handler to respond to the registered RoutedCommand for the
+        /// Registers this handler to respond to the registered <see cref="RoutedCommand"/> for the
         /// given element.
         /// </summary>
         /// <param name="owner"> The element for which we should register the command
-        /// binding for the current routed command. </param>
+        /// binding for the current routed command.</param>
         internal void Register(FrameworkElement owner)
         {
             var binding = new CommandBinding(RoutedCommand, HandleExecute, HandleCanExecute);
@@ -73,7 +73,7 @@
         /// Executes <see cref="ICommand.CanExecute(object)"/> with the 
         /// <see cref="CanExecuteRoutedEventArgs.Parameter"/> from <paramref name="e"/>.
         /// </summary>
-        /// <param name="sender">The owner of the routed command.</param>
+        /// <param name="sender">The owner of the <see cref="RoutedCommand"/>.</param>
         /// <param name="e">The event arguments given by the routed event.</param>
         private void HandleCanExecute(object sender, CanExecuteRoutedEventArgs e)
         {
Index: Core/Gui/src/Core.Gui/Commands/RoutedCommandHandlers.cs
===================================================================
diff -u -rb441bd9ffa8a255a522abceffd49201e96808502 -r5656a1c68b792647f0222b72b2a80d92c96adb89
--- Core/Gui/src/Core.Gui/Commands/RoutedCommandHandlers.cs	(.../RoutedCommandHandlers.cs)	(revision b441bd9ffa8a255a522abceffd49201e96808502)
+++ Core/Gui/src/Core.Gui/Commands/RoutedCommandHandlers.cs	(.../RoutedCommandHandlers.cs)	(revision 5656a1c68b792647f0222b72b2a80d92c96adb89)
@@ -26,8 +26,8 @@
 namespace Core.Gui.Commands
 {
     /// <summary>
-    ///  Holds a collection of <see cref="RoutedCommandHandler"/> that should be
-    ///  turned into CommandBindings.
+    /// Holds a collection of <see cref="RoutedCommandHandler"/> that should be
+    /// turned into command bindings.
     /// </summary>
     public class RoutedCommandHandlers : FreezableCollection<RoutedCommandHandler>
     {
@@ -42,7 +42,7 @@
         /// <summary>
         /// Creates a new instance of <see cref="RoutedCommandHandlers"/>.
         /// </summary>
-        /// <param name="owner"> The element for which this collection is created. </param>
+        /// <param name="owner">The element for which this collection is created.</param>
         private RoutedCommandHandlers(FrameworkElement owner)
         {
             this.owner = owner;
@@ -51,8 +51,8 @@
         }
 
         /// <summary>
-        /// Gets the collection of RoutedCommandHandler for a given element, creating
-        ///  it if it doesn't already exist.
+        /// Gets the collection of <see cref="RoutedCommandHandler"/> for a given element, creating
+        /// it if it doesn't already exist.
         /// </summary>
         /// <param name="element">The element to which <see cref="RoutedCommandHandlers"/>
         /// was added.</param>