1. Preventing firearm violence, a public health imperative;American College of Physicians;Annals of Internal Medicine,1995
2. Trends in mortality from violent deaths: suicide and homicide, United States, 1960–1991;Seltzer;Statistical Bulletin - Metropolitan Life Insurance Company,1994
3. Men, women and murder: gender specific difference in rates of fatal violence and victimization;Kellermann;Journal of Trauma,1992
4. Supplementary Homicide Reports, 1976–2005 http://www.ojp.usdoj.gov/bjs/homicide/overview.htm.
5. EURES, Ricerche Economiche e Sociali, Archivio degli omicidi volontari in Italia, Agenzia ANSA, 2007.