Simplify references to tutorial programs.

diff --git a/include/deal.II/lac/sparse_direct.h b/include/deal.II/lac/sparse_direct.h
index 761252d5f12ac60272fbc9c919090bab41ba57bc..c3e4bed3022dbb638b3656375f9ddb977e3a494e 100644 (file)
--- a/include/deal.II/lac/sparse_direct.h
+++ b/include/deal.II/lac/sparse_direct.h
@@ -54,10 +54,7 @@ namespace types
  * systems, Ax=b, using the Unsymmetric-pattern MultiFrontal method and direct
  * sparse LU factorization. Matrices may have symmetric or unsymmetric
  * sparsity patterns, and may have unsymmetric entries. The use of this class
- * is explained in the
- * @ref step_22 "step-22"
- * and
- * @ref step_29 "step-29"
+ * is explained in the step-22 and step-29
  * tutorial programs.
  *
  * This matrix class implements the usual interface of preconditioners, that