diff --git a/solt/transforms/_transforms.py b/solt/transforms/_transforms.py
index 179bcf3..9159717 100644
--- a/solt/transforms/_transforms.py
+++ b/solt/transforms/_transforms.py
@@ -1213,7 +1213,7 @@ def _apply_img(self, img: np.ndarray, settings: dict):
 
 
 class IntensityRemap(ImageTransform):
-    """Performs random intensity remapping.
+    """Performs random intensity remapping [1]_.
 
     Parameters
     ----------