diff --git a/src/teaching/cse-662/2017fa/feedback/06-scansharing.erb b/src/teaching/cse-662/2017fa/feedback/06-scansharing.erb
index d8ba2134..8d6313d2 100644
--- a/src/teaching/cse-662/2017fa/feedback/06-scansharing.erb
+++ b/src/teaching/cse-662/2017fa/feedback/06-scansharing.erb
@@ -2,7 +2,7 @@
 
 <dl>
   <dt>Paper</dt>
-  <dd><a href="https://dl.acm.org.gate.lib.buffalo.edu/citation.cfm?id=1687707">Predictable performance for unpredictable workloads</a></dd>
+  <dd><a href="http://dl.acm.org.gate.lib.buffalo.edu/citation.cfm?id=1687707">Predictable performance for unpredictable workloads</a></dd>
   <dt>Demo Paper</dt>
   <dd><a href="http://dl.acm.org.gate.lib.buffalo.edu/citation.cfm?id=1807326">Crescando</a></dd>
 </dl>
diff --git a/src/teaching/cse-662/2017fa/index.md b/src/teaching/cse-662/2017fa/index.md
index 7eb2d233..d929a2a5 100644
--- a/src/teaching/cse-662/2017fa/index.md
+++ b/src/teaching/cse-662/2017fa/index.md
@@ -105,7 +105,7 @@ After the taking the course, students should be able to:
 * **Oct. 30 - Nov. 3** :  *Luke Ziarek: Software-Transactional Memory* [ [paper](http://dl.acm.org.gate.lib.buffalo.edu/citation.cfm?id=1133985) | [feedback](feedback/05-softwaretransactionalmem.html) ]
 * **Nov. 06** : Streaming [ [paper](http://www.cs.cornell.edu/johannes/papers/2007/2007-CIDR-Cayuga.pdf) | [Notes](slides/2017-11-05-Cayuga.pdf) ]
 * **Nov. 08 - Nov. 10** : Student Project Presentations
-* **Nov. 13** : Scan Sharing [ [paper](https://dl.acm.org.gate.lib.buffalo.edu/citation.cfm?id=1687707) | [demo paper](http://dl.acm.org.gate.lib.buffalo.edu/citation.cfm?id=1807326) | [feedback](feedback/06-scansharing.html) ]
+* **Nov. 13** : Scan Sharing [ [paper](http://dl.acm.org.gate.lib.buffalo.edu/citation.cfm?id=1687707) | [demo paper](http://dl.acm.org.gate.lib.buffalo.edu/citation.cfm?id=1807326) | [feedback](feedback/06-scansharing.html) ]
 * **Nov. 15 - Nov. 17** : Student Project Presentations
 * **Nov. 20** : Declarative Games [ [paper](https://infoscience.epfl.ch/record/166858/files/31-sigmod2007_games.pdf) ]
 * **Nov. 22 - Nov. 24** : **Fall Break**