http://en.m.wikipedia.org/wiki/Airline_bankruptcies_in_the_United_States http://en.m.wikipedia.org/wiki/Airline_bankruptcies_in_the_U... http://www.sciencedire

http://en.m.wikipedia.org/wiki/Airline_bankruptcies_in_the_United_States http://en.m.wikipedia.org/wiki/Airline_bankruptcies_in_the_U... http://www.sciencedirect.com/science/article/pii/0191260784900207 http://www.sciencedirect.com/science/article/pii/01912607849... http://www.centreforaviation.com/news/2010/06/25/us-airlines-an-utter-failure-more-bankruptcies-17-fare-increase-expected--hudson-securities/page1 http://www.centreforaviation.com/news/2010/06/25/us-airlines...