diff --git a/doc/salome/gui/SMESH/input/about_meshes.doc b/doc/salome/gui/SMESH/input/about_meshes.doc
index 61865173b..120d3cda8 100644
--- a/doc/salome/gui/SMESH/input/about_meshes.doc
+++ b/doc/salome/gui/SMESH/input/about_meshes.doc
@@ -18,6 +18,9 @@ Several created meshes can be \subpage building_compounds_page "combined into me
 
 All created meshes and submeshes can be \subpage editing_meshes_page "edited".
 
+There is also a possibility to preview the mesh before its whole computation. Please,
+refer to the \subpage preview_meshes_page chapter for more details.
+
 Meshes can be also using the MESH functions destined for 
 \ref modifying_meshes_page "modification" of generated meshes.
 
diff --git a/doc/salome/gui/SMESH/input/about_quality_controls.doc b/doc/salome/gui/SMESH/input/about_quality_controls.doc
index 7f7fa95db..9872b6c9f 100644
--- a/doc/salome/gui/SMESH/input/about_quality_controls.doc
+++ b/doc/salome/gui/SMESH/input/about_quality_controls.doc
@@ -17,7 +17,7 @@ There are 0D, 1D, 2D and 3D quality controls.
 
 0D mesh quality controls:
 <ul>
-<li>\ref free_nodes_page "Free nodes"</li>
+<li>\subpage free_nodes_page "Free nodes"</li>
 </ul>
 
 1D mesh quality controls:
diff --git a/doc/salome/gui/SMESH/input/selection_filter_library.doc b/doc/salome/gui/SMESH/input/selection_filter_library.doc
index 66c72a0e8..da38dfd76 100644
--- a/doc/salome/gui/SMESH/input/selection_filter_library.doc
+++ b/doc/salome/gui/SMESH/input/selection_filter_library.doc
@@ -97,6 +97,14 @@ specified arbitrary surface within a given <b>Tolerance</b>.
 </li>
 </ul>
 
+Additional criteria to select mesh <b>Nodes</b> are the following:
+<ul><li>
+<b>Free Nodes</b> selects free mesh nodes, i.e. nodes not belonging to 
+mesh elements. See also a
+\ref free_nodes_page "Free Nodes quality control".
+</li>
+</ul>
+
 Additional criteria to select mesh <b>Edges</b> are the following:
 <ul><li>
 <b>Free Borders</b> selects free 1D mesh elements, i.e. edges belonging to