Tu, Shu-Fen, and Ching-Sheng Hsu. "
A BTC-Based Watermarking Scheme for Digital Images."
Information & Security: An International Journal 15, no. 2 (2004): 216-228.
Tagarev, Todor. "
Bulgaria: Integrated Defence Resource Management." In
Security-Sector Reform and Transparency Building. Needs and Options for Ukraine and Moldova, 39-47. Groningen, The Netherlands: Centre for European Security Studies, 2004.
Sundelius, Bengt. "
The Challenge of Security Threats and Emergencies in Modern Society." In
Societal Security and Crisis Management in the 21st Century, 17-19. Stockholm: Swedish Emergency Management Agency, 2004.
Sundelius, Bengt. The Challenge of Security Threats and Emergencies in Modern Society In
Societal Security and Crisis Management in the 21st Century . Zurich: ETH Zurich and Swedish Emergency Management Agency, 2004.
Enquist, H., A. Nilsson, and J. Magnusson. Change Management Implications for Network Organizations In
37th Annual Hawaii International Conference on System Sciences. Big Island, HI, USA, 2004.