1. Ball, N. 2002. Enhancing security sector governance: A conceptual framework for UNDP. New York: UNDP.
2. Ball, N., T. Bouta, and L. van de Goor. 2003. Enhancing democratic governance of the security sector. An institutional assessment tool. The Hague: Clingendael Institute.
3. Brzoska, M. 2006. “Security sector reform in peace support operations”, special issue of International peacekeeping. London: Routledge.
4. Brzoska, M., and A. Heinemann-Gruder. 2004. Security sector reform and post-conflict reconstruction under international auspices. In Reform and reconstruction of the security sector, ed. A. Bryden and H. Hänggi. Münster: Lit Verlag.
5. Buxton, I. 2008. A First Pillar Perspective on EU and SSR: The development of a comprehensive EU approach. In The European Union and security sector reform, ed. P. Fluri and D. Spence. London: John Harper Publishing.