diff --git a/header.tpl b/header.tpl
index c8e5def..d28021d 100644
--- a/header.tpl
+++ b/header.tpl
@@ -181,7 +181,7 @@
       <div class="menu-item">
         <img class="top-icon" src="img/update-icon.svg" alt="update icon"/>
         <a
-        href="https://github.com/NullHypothesis/censorbib/commits/master">Last update: 2022-02-08</a>
+        href="https://github.com/NullHypothesis/censorbib/commits/master">Last update: 2022-06-27</a>
       </div>
       <div class="menu-item">
         <img class="top-icon" src="img/donate-icon.svg" alt="donate icon"/>
diff --git a/references.bib b/references.bib
index 45d0069..2e3e1aa 100644
--- a/references.bib
+++ b/references.bib
@@ -63,6 +63,14 @@
 	url = {https://dl.acm.org/doi/pdf/10.1145/3487552.3487836},
 }
 
+@inproceedings{Basso2021a,
+  author = {Simone Basso},
+  title = {Measuring {DoT}/{DoH} blocking using {OONI Probe}: a preliminary study},
+  booktitle = {{NDSS DNS Privacy Workshop}},
+  year = {2021},
+  url = {https://www.ndss-symposium.org/wp-content/uploads/dnspriv21-02-paper.pdf},
+}
+
 @inproceedings{Padmanabhan2021a,
 	author = {Ramakrishna Padmanabhan and and Arturo Filast\`{o} and Maria Xynou and Ram Sundara Raman and Kennedy Middleton and Mingwei Zhang and Doug Madory and Molly Roberts and Alberto Dainotti},
 	title = {A multi-perspective view of {Internet} censorship in {Myanmar}},