Murphy, Robert K., and Richard G. Cathers. "Transparency in Force Modernization Decisions." Information & Security: An International Journal 23, no. 2 (2009): 207-223.

Shalamanov, Velizar. "C4ISR in Modernizing Security Sector in Bulgaria  and South-Eastern Europe." Information & Security: An International Journal 6 (2001): 7-22.

Tagarev, Todor. "Prerequisites and Approaches to Force Modernization in a Transition Period." Information & Security: An International Journal 6 (2001): 30-52.