March 2014 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Research, Background and Discussion Papers
17 March 2013 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Research, Background and Discussion Papers
18 June 2012 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Research, Background and Discussion Papers
29 April 2011 | Publisher: United States Congressional Research Service | Document type: Research, Background and Discussion Papers
4 March 2011 | Publisher: United States Congressional Research Service | Document type: Research, Background and Discussion Papers