* [http://news.thomasnet.com/IMT/2012/10/02/world-aviation-industry-tries-to-overcome-green-fuel-hurdles/ World Aviation Industry Tries to Overcome Green Fuel Hurdles], Tracey Schelmetic, thomasnet news, October 2nd, 2012 | * [http://news.thomasnet.com/IMT/2012/10/02/world-aviation-industry-tries-to-overcome-green-fuel-hurdles/ World Aviation Industry Tries to Overcome Green Fuel Hurdles], Tracey Schelmetic, thomasnet news, October 2nd, 2012 |