diff --git a/header.tpl b/header.tpl
index c8324d0..c892392 100644
--- a/header.tpl
+++ b/header.tpl
@@ -86,7 +86,7 @@
       (<a href="author_reverse.html">reverse</a>) <a href="author.html">author</a> <br />
       Feedback: <a href="mailto:phw@nymity.ch">phw@nymity.ch</a> (<a
       href="https://nymity.ch/openpgp_public_key.txt">OpenPGP</a>) <br />
-      Last updated: <a href="https://github.com/NullHypothesis/censorbib/commits/master">2019-09-19</a> <br />
+      Last updated: <a href="https://github.com/NullHypothesis/censorbib/commits/master">2019-10-28</a> <br />
       Onion site: <a href="http://3wcwjjnuvjyazeza.onion">3wcwjjnuvjyazeza.onion</a> <br />
       Code: <a href="https://github.com/NullHypothesis/censorbib">GitHub</a>
     </div>
diff --git a/references.bib b/references.bib
index 44c6191..6bc23ba 100644
--- a/references.bib
+++ b/references.bib
@@ -1,3 +1,21 @@
+@inproceedings{Iszaevich2019a,
+	author = {Gunnar Eyal Wolf Iszaevich},
+	title = {Distributed Detection of {Tor} Directory Authorities Censorship in {Mexico}},
+	booktitle = {International Conference on Networks},
+	publisher = {IARIA},
+	year = {2019},
+	url = {https://tics.site/proceedings/2019a/icn_2019_6_20_38010.pdf},
+}
+
+@inproceedings{Ververis2019a,
+	author = {Vasilis Ververis and Marios Isaakidis and Valentin Weber and Benjamin Fabian},
+	title = {Shedding Light on Mobile App Store Censorship},
+	booktitle = {User Modeling, Adaptation and Personalization},
+	publisher = {ACM},
+	year = {2019},
+	url = {https://github.com/hack66/appavail/blob/master/AppStoreCensorship.pdf},
+}
+
 @inproceedings{Wright2018a,
 	author = {Joss Wright and Alexander Darer and Oliver Farnan},
 	title = {On Identifying Anomalies in {Tor} Usage with Applications in Detecting Internet Censorship},