diff --git a/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Circular_kernel.tex b/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Circular_kernel.tex
deleted file mode 100644
index 9711a7d2f13..00000000000
--- a/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Circular_kernel.tex
+++ /dev/null
@@ -1,51 +0,0 @@
-\begin{ccRefClass}{Circular_kernel_2<LinearKernel,AlgebraicKernelForCircles>}
-
-\ccInclude{CGAL/Circular_kernel.h}
-
-\ccIsModel
-
-\ccc{CircularKernel}
-
-\ccParameters
-
-The circular kernel is parameterized by a \ccc{LinearKernel} parameter
-(and derives from it), in order to reuse all needed functionalities on
-basic linear objects provided by one of the \cgal\ kernels. It also
-allows other implementations of these basic functionalities.
-
-The second parameter, \ccc{AlgebraicKernelForCircles}, is meant to provide the
-circular kernel with all the algebraic functionalities required for the
-manipulation of algebraic curves. 
-
-\ccInheritsFrom
-
-\ccc{LinearKernel}
-
-\ccTypes
-
-\ccThree{typedef Circular_arc_point_2<Circular-Kernel>}{Root_of_4xxx}{}
-\ccThreeToTwo
-
-The circular kernel uses basic number types of the algebraic kernel:
-\ccTypedef{typedef AlgebraicKernelForCircles::RT RT;}{Ring number type.}
-\ccTypedef{typedef AlgebraicKernelForCircles::FT FT;}{Field number type.}
-In fact, the two number types \ccc{AlgebraicKernelForCircles::RT} and
-\ccc{LinearKernel::RT} must coincide, as well as
-\ccc{AlgebraicKernelForCircles::FT} and \ccc{LinearKernel::FT}.
-
-The following types are available, as well as all the functionality on
-them described in the \ccc{CircularKernel} concept. 
-
-\ccTypedef{typedef Line_arc_2<Circular_kernel_2> Line_arc_2;}{}
-\ccGlue
-\ccTypedef{typedef Circular_arc_2<Circular_kernel_2> Circular_arc_2;}{}
-\ccGlue
-\ccTypedef{typedef Circular_arc_point_2<Circular_kernel_2> Circular_arc_point_2;}{}
-
-\ccSeeAlso
-
-\ccRefIdfierPage{LinearKernel}\\
-\ccRefIdfierPage{AlgebraicKernelForCircles}\\
-\ccRefIdfierPage{CGAL::Exact_circular_kernel_2}
-
-\end{ccRefClass}
diff --git a/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Filtered_hexagon_kernel.tex b/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Filtered_hexagon_kernel.tex
deleted file mode 100644
index d4fab2a0f3c..00000000000
--- a/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Filtered_hexagon_kernel.tex
+++ /dev/null
@@ -1,17 +0,0 @@
-\begin{ccRefClass}{Filtered_hexagon_curved_kernel<CircularKernel>}
-
-\ccDefinition
-
-This kernel uses an approximation of objects by hexagons to filter the computations. 
-
-\ccInclude{CGAL/Filtered_hexagon_curved_kernel.h}
-
-\ccIsModel
-
-\ccc{CircularKernel}
-
-\ccParameters
-
-This filtered kernel is parameterized by (and derives from) a \ccc{CircularKernel}. 
-
-\end{ccRefClass}
diff --git a/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Filtered_interval_circular_kernel.tex b/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Filtered_interval_circular_kernel.tex
deleted file mode 100644
index e8969bac6e8..00000000000
--- a/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Filtered_interval_circular_kernel.tex
+++ /dev/null
@@ -1,20 +0,0 @@
-\begin{ccRefClass}{Filtered_interval_circular_kernel<CircularKernel>}
-
-\ccDefinition
-
-At first, this kernel uses an approximation of objects by bounding boxes to filter the 
-computations. When the first approximation isn't sufficient to filter the intersect_2
-functor, it approximates the solutions with more accuracy on operations using
-interval arithmetic. (this works only with circular arcs and line arcs)
-
-\ccInclude{CGAL/Filtered_interval_circular_kernel.h}
-
-\ccIsModel
-
-\ccc{CircularKernel}
-
-\ccParameters
-
-This filtered kernel is parameterized by (and derives from) a \ccc{CircularKernel}. 
-
-\end{ccRefClass}