diff --git a/Benchmark_instances/doc_tex/Benchmark_instances/Surface.tex b/Benchmark_instances/doc_tex/Benchmark_instances/Surface.tex
index a24a09b4909..18462393853 100644
--- a/Benchmark_instances/doc_tex/Benchmark_instances/Surface.tex
+++ b/Benchmark_instances/doc_tex/Benchmark_instances/Surface.tex
@@ -1,5 +1,7 @@
 \section{Surface\label{bi_sec:Surface}}
 
+The data sets for surfaces consists of families of quadrics.
+
 \subsection{Quadrics\label{bi_ssec:Quadrics}}
 
 In non-linear computation geometry quadrics are the first non-trivial
@@ -8,11 +10,11 @@ curve analyses, arrangement, or lower envelope computation we give
 three different kinds of families of quadrics: 
 \begin{itemize}
 \item Random arbitrary quadrics\\
-\ccBenchmarkInstance{benchmark/data/Surface/Quadrics/random/Quadrics/*.bff}
+\ccBenchmarkInstance{data/Surface/Quadrics/random/Quadrics/*.bff}
 \item Random ellipsoids
-\ccBenchmarkInstance{benchmark/data/Surface/Quadrics/random/Ellipsoids/*.bff}
+\ccBenchmarkInstance{data/Surface/Quadrics/random/Ellipsoids/*.bff}
 \item Random non-ellipsoids
-\ccBenchmarkInstance{benchmark/data/Surface/Quadrics/random/Non-Ellipsoids/*.bff}
+\ccBenchmarkInstance{data/Surface/Quadrics/random/Non-Ellipsoids/*.bff}
 \end{itemize}
 
 Each family consists of instances of different numbers of quadrics. The