23 December 2010 | Publisher: United States Congressional Research Service | Document type: Research, Background and Discussion Papers
1 July 2010 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Research, Background and Discussion Papers
December 2009 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Research, Background and Discussion Papers
March 2009 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Research, Background and Discussion Papers
