1. Butler, Patrick, and Stephen Bates. 2011. Terminally ill patients told their benefits may be cut.The Guardian, September 21.http://www.guardian.co.uk/politics/2011/sep/21/terminally-ill-told-benefits-cut?CMP=twt_gu.
2. Moreno, Javier. 2011. Mi prioridad: las pensiones. A partir de ahí, habrá que recortar en todo [My priority: Pensions. Then, everything else has to be cut].El País, November 16.http://politica.elpais.com/politica/2011/11/16/actualidad/1321476670_720434.html.
3. Pugh, Tony. 2011. Social Security Disability Insurance program projected to run out of money in 2018.Chicago Tribune, October 28.http://articles.chicagotribune.com/2011-10-28/business/ct-biz-1028-bf-disabled-jobs-20111028_1_social-security-disability-insurance-disabled-workers-ssdi.