1. UN Office of the High Commissioner for Human Rights. Manual on the Effective Investigation and Documentation of Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment (“Istanbul Protocol”), 2004, HR/P/ PT/8/Rev.1.
2. The normative value of the Istanbul protocol;Grossman,2009
3. UN Office of the High Commissioner for Human Rights. Principles on the effective investigation and documentation of torture and other cruel, inhuman or degrading treatment or punishment. Available at: http://www2.ohchr.org/english/law/investigation.htm.
4. Manual on the effective prevention and investigation of extra-legal, arbitrary and summary executions;United Nations,1991
5. The open secret: torture and the medical profession in Chile;Stover,1987