@@ -12,6 +12,7 @@ Simply put, the objective of HOSN is providing the users of COSNs with additiona
### References
[1] [Wainakh et al. (2019) Tweet beyond the Cage: A Hybrid Solution for the Privacy Dilemma in Online Social Networks](https://globecom2019.ieee-globecom.org/)
+
[2] [RTG Privacy and Trust for Mobile Users - Privacy Protection via Hybrid Social Networks](https://www.informatik.tu-darmstadt.de/privacy-trust/research_5/research_area_b__privacy_and_trust_in_social_networksresearch_area_b__privacy_and_trust_in_social_networks/b__2_privacy_protection_via_hybrid_social_networks/index.en.jsp)
