diff --git a/doc/salome/gui/SMESH/input/adding_nodes_and_elements.doc b/doc/salome/gui/SMESH/input/adding_nodes_and_elements.doc
index 7f4ff562e..38fb8c590 100644
--- a/doc/salome/gui/SMESH/input/adding_nodes_and_elements.doc
+++ b/doc/salome/gui/SMESH/input/adding_nodes_and_elements.doc
@@ -19,14 +19,20 @@
 <li>\ref adding_polyhedrons_anchor "Polyhedrons"</li>
 </ul>
 
+SALOME uses the convention of nodal connectivity of elements of MED library. You
+can consult description of the nodal connectivity of elements located
+within documentation on MED library or 
+<a href="http://www.code-aster.org/outils/med/html/connectivites.html">
+  here </a>.
+
 <em>To add a node or an element to your mesh:</em>
 <ol>
-<li>Select your mesh in the Object Browser or in the 3D viewer.</li>
+  <li>Select your mesh in the Object Browser or in the 3D viewer.</li>
 
-<li>From the \b Modification menu choose the \b Add item, the
-following associated sub-menu will appear:</li>
+  <li>From the \b Modification menu choose the \b Add item, the
+    following associated sub-menu will appear:</li>
 
-\image html image146.png
+  \image html image146.png
 
 From this sub-menu select the type of element which you would like to add to your mesh.
 
diff --git a/doc/salome/gui/SMESH/input/adding_quadratic_elements.doc b/doc/salome/gui/SMESH/input/adding_quadratic_elements.doc
index 7f2cf5cf9..1d51daa9a 100644
--- a/doc/salome/gui/SMESH/input/adding_quadratic_elements.doc
+++ b/doc/salome/gui/SMESH/input/adding_quadratic_elements.doc
@@ -14,6 +14,12 @@ QUAD9). The quadratic hexahedral element can bear 7 additional nodes:
 at the element center and at centers of sides, then it is referred as
 tri-quadratic one (or HEXA27).
 
+SALOME uses the convention of nodal connectivity of elements of MED library. You
+can consult description of the nodal connectivity of elements located
+within documentation on MED library or 
+<a href="http://www.code-aster.org/outils/med/html/connectivites.html">
+  here </a>.
+
 There are several ways you can create quadratic elements in your mesh:
 - manually create quadratic elements (the way described below);
 - use \ref quadratic_mesh_anchor "Quadratic Mesh" hypothesis to