Ratchev, Valeri, Vesselin Petkov, and Todor Tagarev. "Evolving Security Concepts: The Premium on Governance in the Case of Bulgaria." Information & Security: An International Journal 33, no. 2 (2015): 83-107.

Todorova, Antonia. "Turkish Security Discourses and Policies: The Kurdish Question." Information & Security: An International Journal 33, no. 2 (2015): 108-121.