* update the general TOC
* integrate the old geometry/sparse tutorial into the new one (they are better than nothing)
* remove the old tutorial on the core module
diff --git a/doc/C06_TutorialLinearAlgebra.dox b/doc/C06_TutorialLinearAlgebra.dox
index c3bb7b4..f4c3ecc 100644
--- a/doc/C06_TutorialLinearAlgebra.dox
+++ b/doc/C06_TutorialLinearAlgebra.dox
@@ -4,7 +4,7 @@
     \ingroup Tutorial
 
 \li \b Previous: \ref TutorialAdvancedInitialization
-\li \b Next: TODO
+\li \b Next: \ref TutorialGeometry
 
 This tutorial explains how to solve linear systems, compute various decompositions such as LU,
 QR, %SVD, eigendecompositions... for more advanced topics, don't miss our special page on
@@ -240,7 +240,7 @@
 </tr>
 </table>
 
-\li \b Next: TODO
+\li \b Next: TutorialGeometry
 
 */