Fixed bug 3166 - added paper reference to stardetector code

modules/features2d/doc/common_interfaces_of_feature_detectors.rst

@@ -220,7 +220,7 @@ StarFeatureDetector
 -------------------
 .. ocv:class:: StarFeatureDetector : public FeatureDetector
 
-The class implements the keypoint detector introduced by K. Konolige, synonym of ``StarDetector``.  ::
+The class implements the keypoint detector introduced by [Agrawal08_], synonym of ``StarDetector``.  ::
 
     class StarFeatureDetector : public FeatureDetector
     {
@@ -234,6 +234,9 @@ The class implements the keypoint detector introduced by K. Konolige, synonym of
         ...
     };
 
+.. [Agrawal08] Agrawal, M., Konolige, K., & Blas, M. R. (2008). Censure: Center surround extremas for realtime feature detection and matching. In Computer Vision–ECCV 2008 (pp. 102-115). Springer Berlin Heidelberg.
+
+
 DenseFeatureDetector
 --------------------
 .. ocv:class:: DenseFeatureDetector : public FeatureDetector