diff --git a/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_2.h b/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_2.h
index b2826180704..9cef743f959 100644
--- a/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_2.h
+++ b/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_2.h
@@ -16,7 +16,6 @@ optimization algorithms using the two-dimensional \cgal kernel.
 \sa `CGAL::Min_annulus_d<Traits>`
 \sa `CGAL::Min_sphere_annulus_d_traits_3<K,ET,NT>`
 \sa `CGAL::Min_sphere_annulus_d_traits_d<K,ET,NT>`
-\sa `MinSphereAnnulusDTraits`
 
 */
 template< typename K, typename ET, typename NT >
diff --git a/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_3.h b/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_3.h
index 5d57a716ada..a3165757726 100644
--- a/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_3.h
+++ b/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_3.h
@@ -16,8 +16,6 @@ optimization algorithms using the three-dimensional \cgal kernel.
 \sa `CGAL::Min_annulus_d<Traits>`
 \sa `CGAL::Min_sphere_annulus_d_traits_2<K,ET,NT>`
 \sa `CGAL::Min_sphere_annulus_d_traits_d<K,ET,NT>`
-\sa `Min_sphere_annulusDTraits`
-
 */
 template< typename K, typename ET, typename NT >
 class Min_sphere_annulus_d_traits_3 {
diff --git a/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_d.h b/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_d.h
index 046cced2d58..9481dfd9150 100644
--- a/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_d.h
+++ b/Bounding_volumes/doc/Bounding_volumes/CGAL/Min_sphere_annulus_d_traits_d.h
@@ -17,7 +17,6 @@ optimization algorithms using the \f$ d\f$-dimensional \cgal kernel.
 \sa `CGAL::Polytope_distance_d<Traits>`
 \sa `CGAL::Min_sphere_annulus_d_traits_2<K,ET,NT>`
 \sa `CGAL::Min_sphere_annulus_d_traits_3<K,ET,NT>`
-\sa `MinSphereAnnulusDTraits`
 
 */
 template< typename K, typename ET, typename NT >