http://en.wikipedia.org/wiki/Detroit_bankruptcy
http://money.cnn.com/2013/07/18/news/economy/detroit-bankruptcy/index.html
http://ca.finance.yahoo.com/news/michigan-gov--snyder-defends-reasons-behind-detroit-bankruptcy-160222649.html
http://ca.finance.yahoo.com/news/detroit-preparing-bankruptcy-filing-early-friday-report-191140221.html
http://ca.finance.yahoo.com/news/tumbling-top-auto-industry-financial-ruin-detroit-files-070029813.html
http://jfdatalinks.blogspot.ca/2013/06/decline-of-detroit-and-other-cities.html