diff --git a/src/wifi/helper/yans-wifi-helper.h b/src/wifi/helper/yans-wifi-helper.h
index 967df1d41..fd53c3078 100644
--- a/src/wifi/helper/yans-wifi-helper.h
+++ b/src/wifi/helper/yans-wifi-helper.h
@@ -31,7 +31,7 @@ namespace ns3 {
  *
  * The intent of this class is to make it easy to create a channel object
  * which implements the YANS channel model. The YANS channel model is described
- * in "Yet Another Network Simulator", http://cutebugs.net/files/wns2-yans.pdf
+ * in "Yet Another Network Simulator"; an author-prepared version of this paper  * is at: https://hal.inria.fr/file/index/docid/78318/filename/yans-rr.pdf
  */
 class YansWifiChannelHelper
 {
@@ -151,7 +151,8 @@ private:
  * \brief Make it easy to create and manage PHY objects for the YANS model.
  *
  * The YANS PHY model is described in "Yet Another Network Simulator",
- * http://cutebugs.net/files/wns2-yans.pdf
+ * published in WNS2 2006; an author-prepared version of this paper
+ * is at: https://hal.inria.fr/file/index/docid/78318/filename/yans-rr.pdf
  *
  * The Pcap and ASCII traces generated by the EnableAscii and EnablePcap methods defined
  * in this class correspond to PHY-level traces and come to us via WifiPhyHelper
diff --git a/src/wifi/model/yans-wifi-phy.h b/src/wifi/model/yans-wifi-phy.h
index 7ba3f3f5b..8bf7dc822 100644
--- a/src/wifi/model/yans-wifi-phy.h
+++ b/src/wifi/model/yans-wifi-phy.h
@@ -35,9 +35,9 @@ class YansWifiChannel;
  *
  * This PHY implements a model of 802.11a. The model
  * implemented here is based on the model described
- * in "Yet Another Network Simulator",
- * (http://cutebugs.net/files/wns2-yans.pdf).
- *
+ * in "Yet Another Network Simulator" published in WNS2 2006;
+ * an author-prepared version of this paper is at:
+ * https://hal.inria.fr/file/index/docid/78318/filename/yans-rr.pdf
  *
  * This PHY model depends on a channel loss and delay
  * model as provided by the ns3::PropagationLossModel