diff --git a/Kernel_23/doc_tex/Kernel_23_ref/Projection_traits_xy_3.tex b/Kernel_23/doc_tex/Kernel_23_ref/Projection_traits_xy_3.tex
index 242e259ad95..870054641dd 100644
--- a/Kernel_23/doc_tex/Kernel_23_ref/Projection_traits_xy_3.tex
+++ b/Kernel_23/doc_tex/Kernel_23_ref/Projection_traits_xy_3.tex
@@ -35,7 +35,8 @@ of the concepts \ccc{PolygonTraits_2} and \ccc{ConvexHullTraits_2}.
 \ccRefConceptPage{DelaunayTriangulationTraits_2} \\
 \ccRefConceptPage{ConstrainedTriangulationTraits_2} \\
 \ccRefConceptPage{PolygonTraits_2} \\
-\ccRefConceptPage{ConvexHullTraits_2}
+\ccRefConceptPage{ConvexHullTraits_2} \\
+\ccRefConceptPage{DelaunayMeshTraits_2}
 
 \ccTypes
 
diff --git a/Mesh_2/doc_tex/Mesh_2_ref/ConformingDelaunayTriangulationTraits_2.tex b/Mesh_2/doc_tex/Mesh_2_ref/ConformingDelaunayTriangulationTraits_2.tex
index 3c885c9b2d5..68431ba10f3 100644
--- a/Mesh_2/doc_tex/Mesh_2_ref/ConformingDelaunayTriangulationTraits_2.tex
+++ b/Mesh_2/doc_tex/Mesh_2_ref/ConformingDelaunayTriangulationTraits_2.tex
@@ -61,7 +61,8 @@ points on constrained edges.
 \ccMethod{Angle_2 angle_2_object();}{}
 
 \ccHasModels
-Any model of \ccc{Kernel} concept. In particular, all \cgal\ kernels.
+Any model of \ccc{Kernel} concept. In particular, all \cgal\ kernels.\\
+\ccc{Projection_traits_xy_3<K>}
 
 \end{ccRefConcept}
 
diff --git a/Mesh_2/doc_tex/Mesh_2_ref/DelaunayMeshTraits_2.tex b/Mesh_2/doc_tex/Mesh_2_ref/DelaunayMeshTraits_2.tex
index 538356c76da..ed21282fcfb 100644
--- a/Mesh_2/doc_tex/Mesh_2_ref/DelaunayMeshTraits_2.tex
+++ b/Mesh_2/doc_tex/Mesh_2_ref/DelaunayMeshTraits_2.tex
@@ -36,7 +36,8 @@ object \ccc{Construct_circumcenter_2}.
 \ccMethod{Compute_area_2 compute_area_2_object();}{}
 
 \ccHasModels
-Any model of the \ccc{Kernel} concept. In particular, all \cgal\ kernels.
+Any model of the \ccc{Kernel} concept. In particular, all \cgal\ kernels.\\
+\ccc{Projection_traits_xy_3<K>}
 
 \end{ccRefConcept}