1. Andrienko, Y. & Shelley, L.I. (2005). Crime, violence and political conflict in Russia . In P. Collier & N. Sambanis (Eds.), Understanding civil war, Volume 2: Europe, Central Asia, and other regions (pp. 87-117). Washington, DC: World Bank.
2. Butchart, A. & Engstrom, K. (2002). Sex- and age-specific relations between economic development, economic inequality, and homicide rates in people aged 0-24 years: A cross-sectional analysis. Bulletin of the World Health Organization, 80, 797-805.