fix exdec paper link
diff --git a/src/folsom_sample_exdec.erl b/src/folsom_sample_exdec.erl
index 5c1e56c..a7a5d04 100644
--- a/src/folsom_sample_exdec.erl
+++ b/src/folsom_sample_exdec.erl
@@ -26,7 +26,7 @@
 %%%
 %%% that implementation is based on:
 %%%
-%%% http://www.research.att.com/people/Cormode_Graham/library/publications/CormodeShkapenyukSrivastavaXu09.pdf
+%%% http://dimacs.rutgers.edu/~graham/pubs/papers/fwddecay.pdf
 %%% @end
 %%%------------------------------------------------------------------