References
- Eisner , M. 2004 . Violence and the Rise of Modern Society . Criminology in Europe , 3 : 1 – 16 .
- Hirst , P. 2001 . War and Power in the 21st Century , Cambridge : Polity .
- Ruggiero , V. 2006 . Understanding Political Violence , London/New York : Open University Press/ McGraw-Hill .