diff --git a/Circular_kernel_3/doc_tex/Circular_kernel_3_ref/intro.tex b/Circular_kernel_3/doc_tex/Circular_kernel_3_ref/intro.tex
index 56fab79d9bb..c0c34177291 100644
--- a/Circular_kernel_3/doc_tex/Circular_kernel_3_ref/intro.tex
+++ b/Circular_kernel_3/doc_tex/Circular_kernel_3_ref/intro.tex
@@ -33,11 +33,11 @@
 
 	\subsubsection*{Functors}
 
-\ccRefConceptPage{AlgebraicKernelForCircles::ConstructPolynomial_1_3}\\
-\ccRefConceptPage{AlgebraicKernelForCircles::ConstructPolynomialForSpheres_2_3}
+\ccRefConceptPage{AlgebraicKernelForSpheres::ConstructPolynomial_1_3}\\
+\ccRefConceptPage{AlgebraicKernelForSpheres::ConstructPolynomialForSpheres_2_3}
 
-\ccRefConceptPage{AlgebraicKernelForCircles::ConstructPolynomials_for_lines_3}\\
-\ccRefConceptPage{AlgebraicKernelForCircles::ConstructPolynomialsForCircles_2}
+\ccRefConceptPage{AlgebraicKernelForSpheres::ConstructPolynomials_for_lines_3}\\
+\ccRefConceptPage{AlgebraicKernelForSpheres::ConstructPolynomialsForCircles_2}
 
 \ccRefConceptPage{AlgebraicKernelForSpheres::CompareX}\\
 \ccRefConceptPage{AlgebraicKernelForSpheres::CompareY}\\