diff --git a/references.bib b/references.bib
index 0898d1d..5956715 100644
--- a/references.bib
+++ b/references.bib
@@ -1,3 +1,25 @@
+@article{Sharma2025a,
+	author = {Piyush Kumar Sharma and Diwen Xue and Aaron Ortwein and Cecylia Bocovich and Harry and Roya Ensafi},
+	title = {CenPush: Blocking-Resistant Control Channel Using Push Notifications},
+	journal = {Privacy Enhancing Technologies},
+	volume = {2025},
+	number = {1},
+	publisher = {},
+	year = {2025},
+	url = {https://petsymposium.org/popets/2025/popets-2025-0153.pdf},
+}
+
+@article{Wails2022a,
+	title = {Learning to behave: Improving covert channel security with behavior-based designs},
+	author = {Ryan Wails and Andrew Stange and Eliana Troper and Aylin Caliskan and Roger Dingledine and Rob Jansen and Micah Sherr},
+	journal = {Privacy Enhancing Technologies},
+	volume = {2022},
+	number = {1},
+	publisher = {},
+	year = {2022},
+	url = {https://petsymposium.org/popets/2022/popets-2022-0068.pdf},
+}
+
 @inproceedings{Ailabouni2021a,
 	author = {Rami Ailabouni and Orr Dunkelman and Sara Bitan},
 	title = {{DNS}-Morph: {UDP}-Based Bootstrapping Protocol for {Tor}},