"Blending New-generation Warfare and Soft Power: Hybrid Dimensions of Russia-Bulgaria Relations." Connections: The Quarterly Journal 17, no. 1 (2018): 5-20.

Hadjitodorov, Stefan, Todor Tagarev, and Nikolay Pavlov. "Shaping Bulgaria's Security and Defence R&T Policy." In Policy and Models for R&D Management in Support of Defence Industrial Transformation, 105-111. Sofia: Avangard Prima, 2008.

"Situation Scenarios with lead responsibility of the Ministry of Emergencies." In Methodology and scenarios for defense planning. Sofia: Ministry of Defence, Directorate "Defence Policy", Military Publishing House, 2007.

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"Civil Security: Architectural Approach in Emergency Management Transformation." Information & Security: An International Journal 17 (2005): 75-101.

Hadjitodorov, Stefan, and Kiril Stoychev. "??????? ? ???????? ?? ??????????? ?? ??????????????." ?????? ?????? 109, no. 2 (2002): 111-114.

Hadjitodorov, Stefan, and Todor Tagarev. "Scientific Research and Development in NATO." Military Journal 107, no. 4 (2000): 81-90.