diff --git a/Kernel_23/doc_tex/Kernel_23_ref/Circle_3.tex b/Kernel_23/doc_tex/Kernel_23_ref/Circle_3.tex
index 7c74c5914c2..14f1f28ae28 100644
--- a/Kernel_23/doc_tex/Kernel_23_ref/Circle_3.tex
+++ b/Kernel_23/doc_tex/Kernel_23_ref/Circle_3.tex
@@ -33,6 +33,12 @@ circle can be degenerate, i.e.\ the squared radius may be zero.
 	the vector \ccc{n}.
 	\ccPrecond{\ccc{sq_r} $\geq$ 0.}}
 
+\ccConstructor{Circle_3(Point_3<Kernel> const& p, 
+               Point_3<Kernel> const& q, Point_3<Kernel> const& r);}
+	{introduces a variable \ccVar\ of type \ccClassTemplateName.
+        It is initialized to the circle passing through the three points.
+        \ccPrecond{The three points are not collinear.}}
+
 \ccConstructor{Circle_3(Sphere_3<Kernel> const& sphere1, 
 		Sphere_3<Kernel> const& sphere2);}
 	{introduces a variable \ccVar\ of type \ccClassTemplateName.
diff --git a/Kernel_23/doc_tex/Kernel_23_ref/Kernel_ConstructCircle_3.tex b/Kernel_23/doc_tex/Kernel_23_ref/Kernel_ConstructCircle_3.tex
index f40b71f99a7..8643b9ff2f2 100644
--- a/Kernel_23/doc_tex/Kernel_23_ref/Kernel_ConstructCircle_3.tex
+++ b/Kernel_23/doc_tex/Kernel_23_ref/Kernel_ConstructCircle_3.tex
@@ -29,6 +29,13 @@ A model for this must provide:
 	containing \ccc{center} and normal to \ccc{n}.
         \ccPrecond{\ccc{sq_r} $\geq$ 0.}}
 
+\ccMemberFunction{Kernel::Circle_3 operator()
+			( Kernel::Point_3 const& p,
+                        Kernel::Point_3 const& q, 
+                        Kernel::Point_3 const& r);}
+        {introduces a variable of type \ccc{Kernel::Point_3}.
+        It is initialized to the circle passing through the three points.
+        \ccPrecond{The three points are not collinear.}}
 
 \ccMemberFunction{Kernel::Circle_3 operator()
 			( Kernel::Sphere_3 const& sphere1,