http://news.google.com/news/url?sa=t&fd=R&usg=AFQjCNGjCucqPD5iVyPMUf4ZyBpSXJ8xlQ&url=http://www.ainonline.com/aviation-news/paris-air-show/2013-06-12/pw-geared-turbofans-edges-ahead?qt-most_popular%3D1
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