diff --git a/Documentation/biblio/cgal_manual.bib b/Documentation/biblio/cgal_manual.bib
index 2285b00840a..299002020d8 100644
--- a/Documentation/biblio/cgal_manual.bib
+++ b/Documentation/biblio/cgal_manual.bib
@@ -2335,6 +2335,15 @@ ADDRESS = "Saarbr{\"u}cken, Germany"
   series =	 {Texts and Monographs in Symbolic Computation}
 }
 
+@conference {cgal:bl-frmsurc-11
+  ,address = {San Francisco, CA}
+  ,author = {Evan Behar and Jyh-Ming Lien}
+  ,booktitle = {Proc. {IEEE} Int. Conf. Intel. Rob. Syst. ({IROS})}
+  ,month = {Sep.}
+  ,title = {Fast and Robust 2D Minkowski Sum Using Reduced Convolution}
+  ,year = {2011}
+}
+
 % ----------------------------------------------------------------------------
 % END OF BIBFILE
 % ----------------------------------------------------------------------------
diff --git a/Minkowski_sum_2/doc/Minkowski_sum_2/CGAL/minkowski_sum_2.h b/Minkowski_sum_2/doc/Minkowski_sum_2/CGAL/minkowski_sum_2.h
index 79d4e18fb3e..c0a992e0402 100644
--- a/Minkowski_sum_2/doc/Minkowski_sum_2/CGAL/minkowski_sum_2.h
+++ b/Minkowski_sum_2/doc/Minkowski_sum_2/CGAL/minkowski_sum_2.h
@@ -22,11 +22,13 @@ const Polygon_2<Kernel,Container>& Q);
 /*!
 \ingroup PkgMinkowskiSum2
 
-Computes the Minkowski sum \f$ P \oplus Q\f$ of the two given polygons.
-The function computes the reduced convolution of the two polygons and
-extracts those loops of the convolution which are part of the Minkowsi
-sum. This method works very efficiently, regardless of whether `P` and
-`Q` are convex or non-convex.
+Computes the Minkowski sum \f$ P \oplus Q\f$ of the two given polygons. The
+function computes the reduced convolution \cgalCite{cgal:bl-frmsurc-11} of
+the two polygons and extracts those loops of the convolution which are part of
+the Minkowsi sum. This method works very efficiently, regardless of whether `P`
+and `Q` are convex or non-convex. It is usually faster than the full
+convolution method, except in degenerate cases where the output polygon has
+many holes.
 Note that as the input polygons may not be convex, their Minkowski
 sum may not be a simple polygon. The result is therefore represented
 as a polygon with holes.