1. Animal Liberation Front. (2010) The ALF credo and guidelines,
http://www.animalliberationfront.com/ALFront/alf_credo.htm
, accessed 28 January 2015.
2. Clarke, R.V. and Felson, M. (eds.) (2008) Introduction: Criminology, routine activity, and rational choice. In: Routine Activity and Rational Choice: Advances in Criminological Theory. Vol. 5. New Brunswick, NJ: Transaction Publishers, pp. 1–14.
3. Clarke, R.V. and Newman, G.R. (2006) Outsmarting the Terrorists. Westport, CT: Praeger Security International.
4. Clarke, R.V. and Newman, G.R. (2009) Reducing the opportunities for terrorism: Applying the principles of situational crime prevention. In: W.G.K. Stritzke, S. Lewandowsky, D. Denemark, J. Clare and F. Morgan (eds.) Terrorism and Torture: An Interdisciplinary Perspective. New York: Cambridge University Press, pp. 86–105.
5. Cohen, L.E. and Felson, M. (1979) Social change and crime rate trends: A routine activity approach. American Sociological Review 44 (4): 588–608.