Georgi Tsvetkov"Defence Policy of Republic of Bulgaria: Critical Analysis."Security and Defence Management7(2020):Tsvetkov Defence Policy
Andis Kudors"Transformation of Security and Intelligence Services in Latvia."Connections: The Quarterly Journal18,no. 3(2019):105-124.18.3.06_kudors_intelligence_latvia.pdf
Petr Zeman"Intelligence Services of the Czech Republic: Current Legal Status and Its Development."Information & Security: An International Journal30,no. 2(2014):67-84.3006_zeman.pdf