update refs

doc/VERSIONS.txt

-2.13.0: new ONELAB 1.2 protocol with native support for lists and TCP/IP
-communication speedup on Linux and Windows; new experimental 3D boundary
-recovery code; better adaptive visualization of quads and hexahedra; fixed
-several regressions introduced in 2.12.
+2.13.0: new ONELAB 1.2 protocol with native support for lists; new experimental
+3D boundary recovery code and 3D refinement algorithm; better adaptive
+visualization of quads and hexahedra; fixed several regressions introduced in
+2.12.
 
 2.12.0 (March 5, 2016): improved interactive definition of physical groups and
 handling of ONELAB clients; improved full quad algorithm; added support for list

doc/gmsh.html

@@ -321,14 +321,14 @@ directly</a> for more information.
   </ul>
   High-order meshing
   <ul class="small">
-    <li>A. Johnen, J.-F. Remacle and
-      C. Geuzaine. <em><a href="doc/preprints/gmsh_curved2_preprint.pdf">Geometric
-      validity of high-Order triangular finite elements</a></em>. Engineering
-      with Computers, in press, 2012.
     <li>A. Johnen, J.-F. Remacle and
       C. Geuzaine. <em><a href="doc/preprints/gmsh_curved_preprint.pdf">Geometric
           validity of curvilinear finite elements</a></em>. Journal of
-        Computational Physics, in press, 2012.
+      Computational Physics 233, pp. 359-372, 2013.
+    <li>A. Johnen, J.-F. Remacle and
+      C. Geuzaine. <em><a href="doc/preprints/gmsh_curved2_preprint.pdf">Geometric
+          validity of high-Order triangular finite elements</a></em>. Engineering
+      with Computers 30 (3), pp. 375-382, 2014.
     <li>T. Toulorge, C. Geuzaine, J.-F. Remacle,
       J. Lambrechts. <em><a href="doc/preprints/gmsh_untangling_preprint.pdf">Robust
           untangling of curvilinear meshes</a></em>. Journal of Computational