diff --git a/wiki/Time.wiki b/wiki/Time.wiki
index f013f33a..e2261267 100644
--- a/wiki/Time.wiki
+++ b/wiki/Time.wiki
@@ -1,9 +1,13 @@
 #summary this page collects references on scaling time for network emulation
 
-This page collects references on scaling time for network emulation.
-
 = References =
 
+ * VAN Testbed - Telcordia/CERDEC
+   Modified Xen hypervisor monitors Discrete Event Simulator (DES) clock to provide VMs with a _slowdown factor_. <br>
+   http://portal.acm.org/citation.cfm?id=1831353 <br>
+   http://portal.acm.org/citation.cfm?id=1857024 <br>
+   http://www.computer.org/portal/web/csdl/doi/10.1109/TRIDENTCOM.2009.4976204
+
  * DieCast - _time dilation_
    Modified Xen hypervisor to make time appear slower to guest OS.<br>
    http://www.usenix.org/event/nsdi08/tech/gupta.html <br>