From 3e544d7facf89e215b7e2448d878d5834ad04dbf Mon Sep 17 00:00:00 2001
From: Ankit Agrawal <aaaagrawal@iitb.ac.in>
Date: Wed, 12 Jun 2013 18:11:40 +0800
Subject: [PATCH] Adding author and name of the paper in reference section of
 adjust_sigmoid

---
 skimage/exposure/exposure.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/skimage/exposure/exposure.py b/skimage/exposure/exposure.py
index 79847075..9c50ab7d 100644
--- a/skimage/exposure/exposure.py
+++ b/skimage/exposure/exposure.py
@@ -338,7 +338,8 @@ def adjust_sigmoid(image, cutoff=0.5, gain=10, inv=False):
 
     References
     ----------
-    .. [1] http://www.cis.rit.edu/fairchild/PDFs/PAP07.pdf
+    .. [1] Gustav J. Braun, "Image Lightness Rescaling Using Sigmoidal Contrast
+    Enhancement Functions" http://www.cis.rit.edu/fairchild/PDFs/PAP07.pdf
 
     """
     _assert_non_negative(image)